100+ datasets found
  1. a

    LA County Parcel Map Service

    • hub.arcgis.com
    Updated Apr 9, 2014
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    County of Los Angeles (2014). LA County Parcel Map Service [Dataset]. https://hub.arcgis.com/datasets/lacounty::la-county-parcel-map-service/about
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    Dataset updated
    Apr 9, 2014
    Dataset authored and provided by
    County of Los Angeles
    Area covered
    Description

    Do not download this parcel map service as a shapefile - you will get an error. To download a zipped file geodatabase, go to this Hub item: https://egis-lacounty.hub.arcgis.com/datasets/parcelsThis map service provides information about properties and parcel boundaries in the County of Los Angeles. The Office of the Assessor (click here for their website) maintains assessment records of real and personal property in the County of Los Angeles, as well as a GIS Tax Parcel Base Map. The Assessor has recently changed its policies and will be releasing a number of datasets publicly over time. They will be available here, as well as on the County’s Open Data Portal (click here to learn more). To access the Property Assessment Information System, where you can search for properties and see maps and imagery, go to the PAIS website.All inquiries should be directed to the Mapping & GIS Services Section, LA County Office of the Assessor at gisinfo@assessor.lacounty.gov

  2. C

    Allegheny County Property Viewer

    • data.wprdc.org
    • datadiscoverystudio.org
    • +3more
    html
    Updated Apr 7, 2025
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    Allegheny County (2025). Allegheny County Property Viewer [Dataset]. https://data.wprdc.org/dataset/http-alcogis-maps-arcgis-com-apps-webappviewer-index-html-id-b4b1dbb65b4943538425bb5ae0f8f62b
    Explore at:
    htmlAvailable download formats
    Dataset updated
    Apr 7, 2025
    Dataset provided by
    Allegheny County
    License

    CC0 1.0 Universal Public Domain Dedicationhttps://creativecommons.org/publicdomain/zero/1.0/
    License information was derived automatically

    Area covered
    Allegheny County
    Description

    Webmap of Allegheny municipalities and parcel data. Zoom for a clickable parcel map with owner name, property photograph, and link to the County Real Estate website for property sales information.

  3. d

    King County Parcel Viewer

    • catalog.data.gov
    • data.kingcounty.gov
    Updated Apr 26, 2025
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    data.kingcounty.gov (2025). King County Parcel Viewer [Dataset]. https://catalog.data.gov/dataset/king-county-parcel-viewer
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    Dataset updated
    Apr 26, 2025
    Dataset provided by
    data.kingcounty.gov
    Area covered
    King County
    Description

    Parcel Viewer makes searching for King County parcel information easy. You can search by address, search by parcel number, or you can just zoom in on the map and click on a parcel. Once a parcel is selected, you will get direct links to the King County Assessor’s eReal Property report and the Districts and Development Conditions report.

  4. c

    Parcels Public

    • gisdata.countyofnapa.org
    • hub.arcgis.com
    Updated Aug 15, 2023
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    Napa County GIS | ArcGIS Online (2023). Parcels Public [Dataset]. https://gisdata.countyofnapa.org/maps/napacounty::parcels-public-1
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    Dataset updated
    Aug 15, 2023
    Dataset authored and provided by
    Napa County GIS | ArcGIS Online
    License

    ODC Public Domain Dedication and Licence (PDDL) v1.0http://www.opendatacommons.org/licenses/pddl/1.0/
    License information was derived automatically

    Area covered
    Description

    Internal view of the parcel layer. This view contains all the attributes that can be seen by County employees.There are approximately 51,300 real property parcels in Napa County. Parcels delineate the approximate boundaries of property ownership as described in Napa County deeds, filed maps, and other source documents. GIS parcel boundaries are maintained by the Information Technology Services GIS team. Assessor Parcel Maps are created and maintained by the Assessor Division Mapping Section. Each parcel has an Assessor Parcel Number (APN) that is its unique identifier. The APN is the link to various Napa County databases containing information such as owner name, situs address, property value, land use, zoning, flood data, and other related information. Data for this map service is sourced from the Napa County Parcels dataset which is updated nightly with any recent changes made by the mapping team. There may at times be a delay between when a document is recorded and when the new parcel boundary configuration and corresponding information is available in the online GIS parcel viewer.From 1850 to early 1900s assessor staff wrote the name of the property owner and the property value on map pages. They began using larger maps, called “tank maps” because of the large steel cabinet they were kept in, organized by school district (before unification) on which names and values were written. In the 1920s, the assessor kept large books of maps by road district on which names were written. In the 1950s, most county assessors contracted with the State Board of Equalization for board staff to draw standardized 11x17 inch maps following the provisions of Assessor Handbook 215. Maps were originally drawn on linen. By the 1980’s Assessor maps were being drawn on mylar rather than linen. In the early 1990s Napa County transitioned from drawing on mylar to creating maps in AutoCAD. When GIS arrived in Napa County in the mid-1990s, the AutoCAD images were copied over into the GIS parcel layer. Sidwell, an independent consultant, was then contracted by the Assessor’s Office to convert these APN files into the current seamless ArcGIS parcel fabric for the entire County. Beginning with the 2024-2025 assessment roll, the maps are being drawn directly in the parcel fabric layer.Parcels in the GIS parcel fabric are drawn according to the legal description using coordinate geometry (COGO) drawing tools and various reference data such as Public Lands Survey section boundaries and road centerlines. The legal descriptions are not defined by the GIS parcel fabric. Any changes made in the GIS parcel fabric via official records, filed maps, and other source documents are uploaded overnight. There is always at least a 6-month delay between when a document is recorded and when the new parcel configuration and corresponding information is available in the online parcel viewer for search or download.Parcel boundary accuracy can vary significantly, with errors ranging from a few feet to several hundred feet. These distortions are caused by several factors such as: the map projection - the error derived when a spherical coordinate system model is projected into a planar coordinate system using the local projected coordinate system; and the ground to grid conversion - the distortion between ground survey measurements and the virtual grid measurements. The aim of the parcel fabric is to construct a visual interpretation that is adequate for basic geographic understanding. This digital data is intended for illustration and demonstration purposes only and is not considered a legal resource, nor legally authoritative.SFAP & CFAP DISCLAIMER: Per the California Code, RTC 606. some legal parcels may have been combined for assessment purposes (CFAP) or separated for assessment purposes (SFAP) into multiple parcels for a variety of tax assessment reasons. SFAP and CFAP parcels are assigned their own APN number and primarily result from a parcel being split by a tax rate area boundary, due to a recorded land use lease, or by request of the property owner. Assessor parcel (APN) maps reflect when parcels have been separated or combined for assessment purposes, and are one legal entity. The goal of the GIS parcel fabric data is to distinguish the SFAP and CFAP parcel configurations from the legal configurations, to convey the legal parcel configurations. This workflow is in progress. Please be advised that while we endeavor to restore SFAP and CFAP parcels back to their legal configurations in the primary parcel fabric layer, SFAP and CFAP parcels may be distributed throughout the dataset. Parcels that have been restored to their legal configurations, do not reflect the SFAP or CFAP parcel configurations that correspond to the current property tax delineations. We intend for parcel reports and parcel data to capture when a parcel has been separated or combined for assessment purposes, however in some cases, information may not be available in GIS for the SFAP/CFAP status of a parcel configuration shown. For help or questions regarding a parcel’s SFAP/CFAP status, or property survey data, please visit Napa County’s Surveying Services or Property Mapping Information. For more information you can visit our website: When a Parcel is Not a Parcel | Napa County, CA

  5. s

    Assessor's Recorded Map Index: Santa Cruz County, California, 2013

    • searchworks.stanford.edu
    zip
    Updated Jun 20, 2024
    + more versions
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    (2024). Assessor's Recorded Map Index: Santa Cruz County, California, 2013 [Dataset]. https://searchworks.stanford.edu/view/zg359sw2441
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    zipAvailable download formats
    Dataset updated
    Jun 20, 2024
    Area covered
    Santa Cruz County, California
    Description

    The Geographic Information Systems (GIS) Unit falls under the purview of the County of Santa Cruz Information Services Department. The GIS Unit serves all County departments and external customers and provides data on land, features and people of Santa Cruz County. Santa Cruz County encompasses 4 cities and approximately 265,000 people. This coverage can be used for basic applications such as viewing, querying and map output production, or to provide a basemap to support graphical overlays and analyses of geospatial data.

  6. s

    Property Lookup

    • data.stlouisco.com
    Updated Mar 31, 2017
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    Saint Louis County GIS Service Center (2017). Property Lookup [Dataset]. https://data.stlouisco.com/app/property-lookup
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    Dataset updated
    Mar 31, 2017
    Dataset authored and provided by
    Saint Louis County GIS Service Center
    Description

    Web App. Use the tabs provided to discover information about map features and capabilities. Link to Metadata. A variety of searches can be performed to find the parcel of interest. Use the Query Tool to build searches. Click Apply button at the bottom of the tool.Query by Name (Last First) (e.g. Bond James)Query by Address (e.g. 41 S Central)Query by Locator number (e.g. 21J411046)Search results will be listed under the Results tab. Click on a parcel in the list to zoom to that parcel. Click on the parcel in the map and scroll through the pop-up to see more information about the parcel. Click the ellipse in the Results tab or in the pop-up to view information in a table. Attribute information can be exported to CSV file. Build a custom Filter to select and map properties by opening the Parcels attribute table:1. Click the arrow tab at the bottom middle of the map to expand the attribute table window2. Click on the Parcels tab3. Check off Filter by map extent4. Open Options>Filter5. Build expressions as needed to filter by owner name or other variables6. Select the needed records from the returned list7. Click Zoom to which will zoom to the selected recordsPlease note that as the map zooms out detailed layers, such as the parcel boundaries will not display.In addition to Search capabilities, the following tools are provided:MeasureThe measure tool provides the capabilities to draw a point, line, or polygon on the map and specify the unit of measurement.DrawThe draw tool provides the capabilities to draw a point, line, or polygon on the map as graphics. PrintThe print tool exports the map to either a PDF or image file. Click Settings button to configure map or remove legend.Map navigation using mouse and keyboard:Drag to panSHIFT + CTRL + Drag to zoom outMouse Scroll Forward to zoom inMouse Scroll Backward to zoom outUse Arrow keys to pan+ key to zoom in a level- key to zoom out a levelDouble Click to Zoom inFAQsHow to select a parcel: Click on a parcel in the map, or use Query Tool to search for parcel by owner, address or parcel id.How to select more than one parcel: Go to Select Tool and choose options on Select button.How to clear selected parcel(s): Go to Select Tool and click Clear.

  7. d

    Allegheny County Map Index Grid

    • catalog.data.gov
    • data.wprdc.org
    • +2more
    Updated May 14, 2023
    + more versions
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    Allegheny County (2023). Allegheny County Map Index Grid [Dataset]. https://catalog.data.gov/dataset/allegheny-county-map-index-grid
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    Dataset updated
    May 14, 2023
    Dataset provided by
    Allegheny County
    Area covered
    Allegheny County
    Description

    Map Index Sheets from Block and Lot Grid of Property Assessment and based on aerial photography, showing 1983 datum with solid line and NAD 27 with 5 second grid tics and italicized grid coordinate markers and outlines of map sheet boundaries. Each grid square is 3500 x 4500 feet. Each Index Sheet contains 16 lot/block sheets, labeled from left to right, top to bottom (4 across, 4 down): A, B, C, D, E, F, G, H, J, K, L, M, N, P, R, S. The first (4) numeric characters in a parcelID indicate the Index sheet in which the parcel can be found, the alpha character identifies the block in which most (or all) of the property lies.

  8. a

    LA County Assessor Map Book

    • citysurvey-lacs.opendata.arcgis.com
    • visionzero.geohub.lacity.org
    • +4more
    Updated Nov 14, 2015
    + more versions
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    lahub_admin (2015). LA County Assessor Map Book [Dataset]. https://citysurvey-lacs.opendata.arcgis.com/maps/lahub::la-county-assessor-map-book
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    Dataset updated
    Nov 14, 2015
    Dataset authored and provided by
    lahub_admin
    Area covered
    Description

    Index of the County Assessor's maps.

  9. l

    Parcels

    • data.lacounty.gov
    • egis-lacounty.hub.arcgis.com
    • +1more
    Updated Jul 21, 2020
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    County of Los Angeles (2020). Parcels [Dataset]. https://data.lacounty.gov/documents/4d67b154ae614d219c58535659128e71
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    Dataset updated
    Jul 21, 2020
    Dataset authored and provided by
    County of Los Angeles
    Description

    File Geodatabase - Click hereShapefile - Click hereThis dataset contains current parcel boundaries and related attributes for approximately 2.4 million parcels maintained by the Los Angeles County Assessor (updated monthly on the second of every month). Due to the size of the data, it is only available for download as a zipped file geodatabase or shapefile at this time. For additional annual assessment roll history and attribute metadata descriptions, please visit the L.A. County Open Data Portal and search for Assessor. To better understand individual data elements, or to interactively view individual parcel information, please visit the Assessor’s Portal. A public-facing parcel map cache can be accessed here (updated weekly): https://public.gis.lacounty.gov/public/rest/services/LACounty_Cache/LACounty_Parcel/MapServer/0All inquiries should be directed to the Mapping & GIS Services Section, LA County Office of the Assessor at gisinfo@assessor.lacounty.gov

  10. u

    Utah Rich County Parcels

    • opendata.gis.utah.gov
    • sgid-utah.opendata.arcgis.com
    • +1more
    Updated Nov 20, 2019
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    Utah Automated Geographic Reference Center (AGRC) (2019). Utah Rich County Parcels [Dataset]. https://opendata.gis.utah.gov/maps/utah-rich-county-parcels
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    Dataset updated
    Nov 20, 2019
    Dataset authored and provided by
    Utah Automated Geographic Reference Center (AGRC)
    License

    Attribution 4.0 (CC BY 4.0)https://creativecommons.org/licenses/by/4.0/
    License information was derived automatically

    Area covered
    Description

    Update information can be found within the layer’s attributes and in a table on the Utah Parcel Data webpage under Basic Parcels."Database containing parcel boundary, parcel identifier, parcel address, owner type, and county recorder contact information" - HB113. The intent of the bill was to not include any attributes that the counties rely on for data sales. If you want other attributes associated with the parcels you need to contact the county recorder.Users should be aware the owner type field 'OWN_TYPE' in the parcel polygons is a very generalized ownership type (Federal, Private, State, Tribal). It is populated with the value of the 'OWNER' field where the parcel's centroid intersects the CADASTRE.LandOwnership polygon layer.This dataset is a snapshot in time and may not be the most current. For the most current data contact the county recorder.

  11. K

    Orange County, CA Parcels

    • koordinates.com
    csv, dwg, geodatabase +6
    Updated Oct 4, 2018
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    Orange County, California (2018). Orange County, CA Parcels [Dataset]. https://koordinates.com/layer/98184-orange-county-ca-parcels/
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    dwg, mapinfo mif, csv, shapefile, kml, pdf, geodatabase, mapinfo tab, geopackage / sqliteAvailable download formats
    Dataset updated
    Oct 4, 2018
    Dataset authored and provided by
    Orange County, California
    Area covered
    Description

    Vector polygon map data covering property parcels from Orange County, California containing 699,877 features.

    Parcel map data consists of detailed information about individual land parcels, including their boundaries, ownership details, and geographic coordinates.

    Parcel data can be used to analyze and visualize land-related information for purposes such as real estate assessment, urban planning, or environmental management.

    Available for viewing and sharing in a Koordinates map viewer. This data is also available for export to DWG for CAD, PDF, KML, CSV, and GIS data formats, including Shapefile, MapInfo, and Geodatabase.

  12. d

    ORMAP The Oregon Property Tax Map

    • catalog.data.gov
    • data.oregon.gov
    • +1more
    Updated Jun 29, 2025
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    data.oregon.gov (2025). ORMAP The Oregon Property Tax Map [Dataset]. https://catalog.data.gov/dataset/ormap-the-oregon-property-tax-map
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    Dataset updated
    Jun 29, 2025
    Dataset provided by
    data.oregon.gov
    Area covered
    Oregon
    Description

    To access the tax lot layer you will need to contact the county Assessor's office. ORMAP is a statewide digital cadastral base map that is publicly accessible, continually maintained, supports the Oregon property tax system, supports a multi-purpose land information system, strives to comply with appropriate state and national standards, and will continue to be improved over time.

  13. K

    Monmouth County, New Jersey Parcels

    • koordinates.com
    csv, dwg, geodatabase +6
    Updated Dec 4, 2018
    + more versions
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    Monmouth County, New Jersey (2018). Monmouth County, New Jersey Parcels [Dataset]. https://koordinates.com/layer/98840-monmouth-county-new-jersey-parcels/
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    dwg, csv, pdf, shapefile, geopackage / sqlite, geodatabase, mapinfo tab, kml, mapinfo mifAvailable download formats
    Dataset updated
    Dec 4, 2018
    Dataset authored and provided by
    Monmouth County, New Jersey
    Area covered
    Description

    This countywide composite of parcels (cadastral) data for Monmouth County represents digitized property boundaries that were developed from best available local and municipal tax maps data. The normalized parcels data are compatible with the New Jersey Department of Treasury MOD-IV system currently used by tax assessors. Stewardship and maintenance of the data continue under the purview of the Monmouth County GIS Office as well as local municipal tax authorities. Parcel attributes were normalized to a standard structure, specified in the New Jersey GIS Parcel Mapping Standard, to store parcel information and provide a PIN (parcel identification number) field common to the PIN that was to be stored in the PAMS (Property Assessment Management System) database to replace the MOD-IV database. Please note that this parcel dataset is not intended for use as tax maps nor for legal purposes. The dataset is intended to provide reasonable representations of parcel boundaries primarily for planning purposes and cartographic representation. Please note cautions when performing a join with this dataset and MOD-IV property records, specifically regarding duplicate and erroneous records. All records may not be provided for in the parcels data or MOD-IV (Tax List Search) tables because of how the data and tables are constructed, or for temporal mismatches. MOD-IV provides for the uniform preparation, maintenance, presentation and storage of property tax information required by the Constitution of the State of New Jersey, New Jersey Statutes and rules promulgated by the Director of Taxation. MOD-IV maintains and updates all assessment records, and produces all statutorily required tax lists. These lists account for all parcels of real property as delineated and identified on each municipality's official tax map, as well as taxable values and descriptive data for each parcel.

    © GIS Office, Monmouth County Planning Board, New Jersey.

  14. n

    Oswego County Active Tax Parcels

    • data.gis.ny.gov
    Updated Apr 12, 2022
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    Oswego County GIS (2022). Oswego County Active Tax Parcels [Dataset]. https://data.gis.ny.gov/datasets/b15088eeef32423b890e4e50b03775d6
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    Dataset updated
    Apr 12, 2022
    Dataset authored and provided by
    Oswego County GIS
    Area covered
    Description

    This layer contains parcels data for Oswego County, NY as taken from the current digitized version of the county tax maps. Originally drawn by Stewart Mapping Services, Inc of San Antonio Texas in 1975, but with digital topology corrected by Oswego County's Department of Real Property Tax Services from 1996-present. Contains taxable parcels attributed with assessment data taken from local assessment rolls.Geography is based upon the taxable status date of March 1st, 2025. Assessment attributes are from the latest final assessment roll (2024) except ownership which is updated bi-monthly on Fridays to reflect the most current owners of record. Click here to retrieve a data dictionary for decoding fields.Note: The original tax maps that these files were digitized from only had an accuracy between 10-20 feet on ground. While every effort is made to maintain this geographic data in an accurate format, the lines drawn from this data are fundamentally informational in nature and are not equivalent to survey grade. Geoprocessing has been applied to this specific web layer to allow faster drawing of lines which can further degrade the accuracy of their geometry. Finally, these parcels are used to create county tax maps which have the sole use case of giving assistance for local municipal assessors in the fulfillment of their duties, there is no warranty (expressed or implied) for any other use.

  15. M

    Tax Parcels, Aitkin County, Minnesota

    • gisdata.mn.gov
    fgdb, gpkg, html +2
    Updated Jul 4, 2025
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    Aitkin County (2025). Tax Parcels, Aitkin County, Minnesota [Dataset]. https://gisdata.mn.gov/dataset/us-mn-co-aitkin-plan-tax-parcels
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    shp, gpkg, fgdb, jpeg, htmlAvailable download formats
    Dataset updated
    Jul 4, 2025
    Dataset provided by
    Aitkin County
    Area covered
    Minnesota, Aitkin County
    Description

    This data set features polygons that represent tax parcels in Aitkin County, Minnesota. Polygons are identified by Parcel Identification Number (PIN). Polygons were mapped using the legal description on file in the Recorder's Office. Redundant geometries exist for condomimiums and undivided interests. Undivided ownership occurs when two or more parties have an ownership interest in the same parcel.

  16. s

    Parcels, Placer County, California, 2020

    • searchworks.stanford.edu
    zip
    Updated May 2, 2021
    + more versions
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    (2021). Parcels, Placer County, California, 2020 [Dataset]. https://searchworks.stanford.edu/view/gv522dx8605
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    zipAvailable download formats
    Dataset updated
    May 2, 2021
    Area covered
    California, Placer County
    Description

    Placer County Assessor Office maintains parcels for Placer County. The parcel data should not be considered survey accurate, but efforts are continually made to make the data as spatially accurate as possible. The data contains numerous fields, including, but not limites Assessor Parcel Number (APN), assess land and structure value, situs address, owner address. NOTE: Placer County does not distribute owner names assoctaed with parcekl via the web. This layer is part of a collection of public geospatial datasets produced by the Placer County GIS Division.

  17. n

    NYS Tax Parcels Public

    • data.gis.ny.gov
    • opdgig.dos.ny.gov
    • +2more
    Updated Dec 20, 2022
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    ShareGIS NY (2022). NYS Tax Parcels Public [Dataset]. https://data.gis.ny.gov/datasets/nys-tax-parcels-public-1
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    Dataset updated
    Dec 20, 2022
    Dataset authored and provided by
    ShareGIS NY
    Area covered
    Description

    Publication Date: April 2025. This polygon layer is updated annually.

    This layer contains 2024 parcel data only for NY State counties which gave NYS ITs Geospatatial Services permission to share this data with the public. Work to obtain parcel data from additional counties, as well as permission to share the data, is ongoing. To date, 36 counties have provided the Geospatial Services permission to share their parcel data with the public. Parcel data for counties which do not allow the Geospatial Services to redistribute their data must be obtained directly from those counties. Geospatial Services' goal is to eventually include parcel data for all counties in New York State.

    Parcel geometry was incorporated as received from County Real Property Departments. No attempt was made to edge-match parcels along adjacent counties. County attribute values were populated using 2024 Assessment Roll tabular data Geospatial Services obtained from the NYS Department of Tax and Finance’s Office of Real Property Tax Services (ORPTS). Tabular assessment data was joined to the county provided parcel geometry using the SWIS & SBL or SWIS & PRINT KEY unique identifier for each parcel.

    Detailed information about assessment attributes can be found in the ORPTS Assessor’s Manuals available here: https://www.tax.ny.gov/research/property/assess/manuals/assersmanual.htm. New York City data comes from NYC MapPluto which can be found here: https://www1.nyc.gov/site/planning/data-maps/open-data/dwn-pluto-mappluto.page.

    This layer displays when zoomed in below 1:37,051-scale.

    This map service is available to the public.

    Geometry accuracy varies by contributing county.

    Thanks to the following counties that specifically authorized Geospatial Services to share their GIS tax parcel data with the public: Albany, Cayuga, Chautauqua, Cortland, Erie, Genesee, Greene, Hamilton, Lewis, Livingston, Montgomery, New York City (Bronx, Kings, New York, Queens, Richmond), Oneida, Onondaga, Ontario, Orange, Oswego, Otsego, Putnam, Rensselaer, Rockland, Schuyler, Steuben, St Lawrence, Suffolk, Sullivan, Tioga, Tompkins, Ulster, Warren, Wayne, and Westchester.

    The State of New York, acting through the New York State Office of Information Technology Services, makes no representations or warranties, express or implied, with respect to the use of or reliance on the Data provided. The User accepts the Data provided “as is” with no guarantees that it is error free, complete, accurate, current or fit for any particular purpose and assumes all risks associated with its use. The State disclaims any responsibility or legal liability to Users for damages of any kind, relating to the providing of the Data or the use of it. Users should be aware that temporal changes may have occurred since this Data was created.

  18. c

    Parcels Public

    • gis.sonomacounty.ca.gov
    • gis-sonomacounty.hub.arcgis.com
    Updated Jul 13, 2021
    + more versions
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    The County of Sonoma (2021). Parcels Public [Dataset]. https://gis.sonomacounty.ca.gov/datasets/4b231e8ffbac47abb9a78296e550ffa1
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    Dataset updated
    Jul 13, 2021
    Dataset authored and provided by
    The County of Sonoma
    License

    Attribution-NoDerivs 3.0 (CC BY-ND 3.0)https://creativecommons.org/licenses/by-nd/3.0/
    License information was derived automatically

    Area covered
    Description

    The seamless, county-wide parcel layer was digitized from official Assessor Parcel (AP) Maps which were originally maintained on mylar sheets and/or maintained as individual Computer Aided Design (CAD) drawing files (e.g., DWG). The CRA office continues to maintain the official AP Maps in CAD drawings and Information Systems Department/Geographic Information Systems (ISD/GIS) staff apply updates from these maps to the seamless parcel base in the County’s Enterprise GIS. The seamless parcel layer is updated and published to the Internet on a monthly basis.The seamless parcel layer was developed from the source data using the general methodology outlined below. The mylar sheets were scanned and saved to standard image file format (e.g., TIFF). The individual scanned maps or CAD drawing files were imported into GIS software and geo-referenced to their corresponding real-world locations using high resolution orthophotography as control. The standard approach was to rescale and rotate the scanned drawing (or CAD file) to match the general location on the orthophotograph. Then, appropriate control points were selected to register and rectify features on the scanned map (or CAD drawing file) to the orthophotography. In the process, features in the scanned map (or CAD drawing file) were transformed to real-world coordinates, and line features were created using “heads-up digitizing” and stored in new GIS feature classes. Recommended industry best practices were followed to minimize root mean square (RMS) error in the transformation of the data, and to ensure the integrity of the overall pattern of each AP map relative to neighboring pages. Where available Coordinate Geometry (COGO) & survey data, tied to global positioning systems (GPS) coordinates, were also referenced and input to improve the fit and absolute location of each page. The vector lines were then assembled into a polygon features, with each polygon being assigned a unique identifier, the Assessor Parcel Number (APN). The APN field in the parcel table was joined to the corresponding APN field in the assessor property characteristics table extracted from the MPTS database to create the final parcel layer. The result is a seamless parcel land base, each parcel polygon coded with a unique APN, assembled from approximately 6,000 individual map page of varying scale and accuracy, but ensuring the correct topology of each feature within the whole (i.e., no gaps or overlaps). The accuracy and quality of the parcels varies depending on the source. See the fields RANK and DESCRIPTION fields below for information on the fit assessment for each source page. These data should be used only for general reference and planning purposes. It is important to note that while these data were generated from authoritative public records, and checked for quality assurance, they do not provide survey-quality spatial accuracy and should NOT be used to interpret the true location of individual property boundary lines. Please contact the Sonoma County CRA and/or a licensed land surveyor before making a business decision that involves official boundary descriptions.

  19. l

    Parcel

    • data.lexingtonky.gov
    • hub.arcgis.com
    Updated Dec 16, 2020
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    Lexington-Fayette Urban County Government (2020). Parcel [Dataset]. https://data.lexingtonky.gov/maps/lfucg::parcel
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    Dataset updated
    Dec 16, 2020
    Dataset authored and provided by
    Lexington-Fayette Urban County Government
    Area covered
    Description

    This dataset is designed to represent and identify the property boundaries in Lexington-Fayette County. The original dataset was created in late 1990's by a third party that converted existing paper maps to digital GIS files. The data has since been updated by georeferencing recorded plats for corrections and new additions. In cases where the plats do not appear accurate, aerial photos are utilized in attempt to properly locate the property lines. The only except for this process are changes to highway right-of-way in which calls are run from deeds. The geometry of this data is not of survey quality and should not be used for survey purposes. The data is intended for general reference purposes only.As part of the basemap data layers, the parcel boundary map layer is an integral part of the Lexington Fayette-Urban County Government Geographic Information System. Basemap data layers are accessed by personnel in most LFUCG divisions for basic applications such as viewing, querying, and map output production. More advanced user applications may focus on thematic mapping, summarization of data by geography, or planning purposes (including defining boundaries, managing assets and facilities, integrating attribute databases with geographic features, spatial analysis, and presentation output).

  20. d

    Jefferson County KY Parcels

    • catalog.data.gov
    • data.lojic.org
    • +3more
    Updated Apr 13, 2023
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    Property Valuation Administrator (PVA) (2023). Jefferson County KY Parcels [Dataset]. https://catalog.data.gov/dataset/jefferson-county-ky-parcels-c8c6c
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    Dataset updated
    Apr 13, 2023
    Dataset provided by
    Property Valuation Administrator (PVA)
    Area covered
    Kentucky, Jefferson County
    Description

    The parcels boundaries are not legal survey accurate and should be used for general representation only. They are maintained by the Jefferson County Property Administrator's Office. To get detailed parcel information, Contact the PVA. Use the LRSN field as the unique parcel identifier. The data is updated daily. View detailed metadata.

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County of Los Angeles (2014). LA County Parcel Map Service [Dataset]. https://hub.arcgis.com/datasets/lacounty::la-county-parcel-map-service/about

LA County Parcel Map Service

Explore at:
Dataset updated
Apr 9, 2014
Dataset authored and provided by
County of Los Angeles
Area covered
Description

Do not download this parcel map service as a shapefile - you will get an error. To download a zipped file geodatabase, go to this Hub item: https://egis-lacounty.hub.arcgis.com/datasets/parcelsThis map service provides information about properties and parcel boundaries in the County of Los Angeles. The Office of the Assessor (click here for their website) maintains assessment records of real and personal property in the County of Los Angeles, as well as a GIS Tax Parcel Base Map. The Assessor has recently changed its policies and will be releasing a number of datasets publicly over time. They will be available here, as well as on the County’s Open Data Portal (click here to learn more). To access the Property Assessment Information System, where you can search for properties and see maps and imagery, go to the PAIS website.All inquiries should be directed to the Mapping & GIS Services Section, LA County Office of the Assessor at gisinfo@assessor.lacounty.gov

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