Publication Date: February 2025. The Westchester County Parcels layer contains 2023- 2024 parcel data only for the County which gave NYS ITS Geospatial Services permission to share this data with the public. 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. This map service is available to the public. 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.

This file contains planimetric basemap data of Westchester County, New York. The source for the data was aerial photography acquired in April 2004. This layer represents the ground location of utility poles, light poles and utility poles with light fixtures. The data was photogrammetrically stereo-compiled to North American Datum 1983; New York State Plane East Zone. Image horizontal accuracy is +/-2.5 ft. at the 90% confidence level.

This layer is a component of MunicipalTaxParcels.

This municipal tax parcel map service contains data for all 43 municipalities in Westchester County. The parcel data in the service are provided by each municipality (attributes may be different from municipality to municipality). The data made available in this service is for general information and planning purposes only, and should not be relied upon as a sole informational source. The County of Westchester hereby disclaims any liability for any and all damage, loss, or liability which may result, directly or indirectly, from the use of this GIS mapping system by any person or entity. Tax parcel boundaries represent approximate property line location and should NOT be interpreted as or used in lieu of a survey, property boundary description, or a definitive municipal tax map. Property descriptions must be obtained from surveys or deeds. As this data was compiled from many different sources, discrepancies will exist along some municipal boundaries. Authoritative and approved tax maps for this municipality ONLY reside with the local assessor. For more information please contact the local assessor's office.

This Structures dataset, photogrammetrically compiled and published at a scale of 1" = 100' was produced from aerial imagery collected in April 2023 using UltraCAM Eagle camera and covers entire Westchester County, NY. It is described as 'struct_poly' and is delivered as a planimetric layer from 2023 imagery compiled/updated in 3D environment with average elevation as an attribute. The layer includes antennas, buildings, miscellaneous structures, tanks, towers, train platforms and train stations.

This file contains polygon data representing service areas that are part of public water supply systems within Westchester County, New York, based upon geographic data in GIS or CAD format provided by water supply systems and integrated into a common countywide feature class in 2012. Not all areas in the county served by public water supply systems are covered, and the accuracy of the geographic representations and attributes included in this dataset is dependent upon the accuracy of the source data, which has not been independently verified by Westchester GIS .

This layer is a component of CADWMS.

Detailed 2-foot contour lines and planimetric features such as buildings, paved surfaces (including sidewalks, parking lots, driveways and the edge of pavement) and street centerlines are included in this map service.

Publication Date: March 2025 2023-2024 Parcel Data. Updated annually, or as needed. The data can be downloaded here: https://gis.ny.gov/parcels#data-download. This feature service has two layers: 1) NYS Tax Parcels Public, and 2) NYS Tax Parcels Public Footprint which contains polygons representing counties for which tax parcel polygons are available in the NYS Tax Parcels Public layer. County footprint polygons display when zoomed out beyond 1:37,050-scale. Tax parcel polygons display when zoomed in below 1:37,051-scale. The NYS Tax Parcels Public layer contains 2023-2024 parcel data only for NY State counties which gave NYS ITS Geospatial 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 Geospatial Services permission to share their parcel data with the public. Parcel data for counties which do not allow 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 2023-2024 Assessment Roll tabular data the NYS ITS 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. 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, NYC- Bronx, NYC- Kings (Brooklyn), NYC- New York (Manhattan), NYC- Queens, NYC- Richmond (Staten Island), Oneida, Onondaga, Ontario, Orange, Oswego, Otsego, Putnam, Rensselaer, Rockland, Schuyler, St Lawrence, Steuben, Suffolk, Sullivan, Tioga, Tompkins, Ulster, Warren, Wayne, and Westchester. Geometry accuracy varies by contributing county. This map service is available to the public. 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.

This data is a collection of sanitary sewer mains within Westchester County (excluding the Westchester County Trunkline). The data was initially digitized from the early 1990's Sanitary Sewer Evaluation Study (SSIS) and then augmented with more recent and up to date data from local governments where available. As of October 5, 2015 this is the most up to date version of the sewer mains available.

© Westchester County, City of Mount Vernon, Town of Cortlandt, Village of Briarcliff Manor, Village of Buchanan, Village of Croton, Village of Irvington, Village of Larchmont, Town of Mamaroneck, Village of Mount Kisco, Town of North Castle, Village of Ossining, Village of Pleasantville, City of Rye, City of Yonkers and Town of Somers This layer is sourced from giswww.westchestergov.com.

This data layer was derived from Westchester County GIS Landuse (wclanduse) layer. Wclanduse layer was updated last in 2011. Wclanduse dataset identifies land use categories at the tax parcel level in Westchester County, NY, and includes other boundary and ownership references for the internal use of the County. Comprised of the tax parcel files available as of publication date, originally obtained from the various Towns and cities, and modified by the Westchester County Department of Planning. The data was updated in October 2019.

This point dataset shows public and private colleges and universities located in Westchester County, New York.

This dataset identifies areas with steep slopes in two categories used in local planning agencies: slopes 15-25% and slopes over 25% (slope=rise/run).

Land Use: Parcel-based Land Use in 61 categories, from Westchester County Planning Department. 2008 or newer.

This layer is sourced from giswww.westchestergov.com.

This Transportation dataset, photogrammetrically compiled and published at 1" = 100 ' scale, was produced from aerial imagery collected in April 2023 using UltraCAM Eagle camera and covers entire Westchester County, NY. It is described as 'tans_poly' and delivered as a planimetric layer from 2023 imagery compiled/updated in 2D environment using 6" GSD ortho imagery. The layer includes roads, driveways, sidewalks, parking lots, trails and elevated roads.

This data set includes location of all Major Roads in Westchester County, New York.

This layer is a component of Community Features.

This Transportation dataset, photogrammetrically compiled and published at 1" = 100 ' scale, was produced from aerial imagery collected in April 2023 using UltraCAM Eagle camera and covers entire Westchester County, NY. It is described as 'tans_poly' and delivered as a planimetric layer from 2023 imagery compiled/updated in 2D environment using 6" GSD ortho imagery. The layer includes roads, driveways, sidewalks, parking lots, trails and elevated roads.

This dataset covers the geographic area of Westchester County, New York. Dataset contains planimetric base map data for streams, creeks, and in some cases rivers, that are less than 10' in width. The source for the imagery is aerial photography acquired in April 2023. The planimetric data was originally compiled from aerial imagery collected in the year 2004. In 2023, new aerial imagery was acquired over the county of Westchester and all planimetric data was updated at that time. This layer contains the polygons delineating hydrologic features. The data was photogrammetrically stereo-compiled to North American Datum 1983; New York State Plane East Zone.

Geospatial data about Dutchess County, New York NYS Senate. Export to CAD, GIS, PDF, CSV and access via API.

Dataset represents the forty-four (44) public libraries in Westchester County, New York, with each library's name, address, internet home page and other contact information, taken from the Westchester Library System (WLS) website https://www.westchesterlibraries.org/about-wls/member-libraries/list-of-member-libraries/ These points are spatially located at building footprints for Emergency Services. Scarsdale Public Library is currently under renovation and has a temporary location. Data up to date as of November 2019.

Vector polygon map data of property parcels from Yonkers, New York containing 34,594 features.

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

Property 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 as a map 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.