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.

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.

Database file was created to support The Office of Economic Development ArcGIS.com application and to use in conjunction with ESRI Business Online Analyst. The data was provided by Data Axle in February 2023. The purpose of the map is to view business data in relation to local zoning and land use, aerial photography, and relevant demographic data.By mining multiple data sources, Data Axle delivers a database that is that is the most robust and comprehensive available. We compile our databases from a number of sources including: GIS projects require the use of comprehensive data sets in order to perform a detailed analysis. Data Axle is widely recognized as providing the most comprehensive solution in the market – with more than 160+ business data elements to select from. A sample listing of the type of attributes collected are listed below.• Hundreds of county-level public sources, publications of record and Secretaries of State for new business registrations• Utility connects and disconnects nationwide• Industry & tourism directories• User generated feedback• Postal processing (NCOALink®, DPV®, LACSLink®, DSF®)• 4,000+ U.S. Yellow and White Page directories• Business name• Full address (Location, mailing, and landmark)• Type of business (Yellow Page heading, SIC and NAICS codes)• ZIP Code™ (including ZIP + 4®)• Telephone number• Fax number (where available)• Website addresses• Number of employees• Sales volume• Name, title, and gender of key executives• Franchise and brand information• Year the business was established• Headquarters, branch, and subsidiary information• Stock exchange and ticker symbol• Latitude, longitude and parcel-level geocodes• News headlines• UCC filings and bankruptcy notices (where available)• Square footage of business campus

Health Care Services is part of a map series developed by Westchester County GIS for the Westchester County Department of Senior Program and Services.Map series consist of several ArcGIS online map applications to provide Westchester County seniors and their family’s access to information regarding health care, housing, food and nutrition programs, social and recreational, and transportation among others.For more information contact:Westchester County Department of Senior Program and Services.

Social and Recreational Sites is part of a map series developed by Westchester County GIS for the Westchester County Department of Senior Program and Services.

Map series consist of several ArcGIS online map applications to provide Westchester County seniors and their family’s access to information regarding health care, housing, food access & nutrition programs, social & recreational, and transportation among others.

For more information contact:Westchester County Department of Senior Program and Services.

This data layer represents a comprehensive countywide update to the 2021 major open spaces GIS data layer and map. In 2021, a new category was added, and polygons for each municipality were verified by their respective government officials. There are 13 open space categories, including many smaller properties not previously mapped. Properties classified as Farms derived from the Westchester County Agricultural District established in 2000. The information used to compile the data came from a variety of sources including aerial photography, digital tax parcel data, local recreation, land use, and master plan maps. Other sources included municipal planning departments and consultants, conservation committees, and the Westchester Land Trust.

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

Faith and Spirituality is part of a map series developed by Westchester County GIS for the Westchester County Department of Senior Program and Services.

Map series consist of several ArcGIS online map applications to provide Westchester County seniors and their family’s access to information regarding health care, housing, food access & nutrition programs, social & recreational, and transportation among others.

For more information contact:Westchester County Department of Senior Program and Services.

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.

This point feature class shows the address locations of septic tank pump out in 2021. The location points include the tax parcel and street level geocoding results. Data is extracted from Digital Health pomp out report database maintained by DOIT Human and Health Services team. Watershed names have been added to the attribute table.

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.

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.

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 coverage shows the Fire agency boundaries in the form of polygons in Westchester County. This coverage identifies fire agency boundry polygons in Westchester County. This information is captured using Microstation. Updated as of February 2011.

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.

Compiled at a scale of 1:24,000, this data is intended for general planning purposes only, and may not be appropriate for site specific analysis. Updated (2012) to reflect basins renamed by the Westchester County Department of Planning and to align with updated Major and Minor Drainage Basins dataset "wcdrain".