Publication Date: April 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 application allows users to identify and locate parcel data by address, print key, owner name (if available). Users can also print maps, export a query result, and generate mailing labels needed for an 'abutters' notice. Select a municipality from the list below to view

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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 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 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 application was built for the public to view Westchester County Aerial photos from various years side by side.

Legal and Finances 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.

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 Community Features.

This point layer consists of 266 points representing historic-designated places in Westchester County and includes those locations designated on the Westchester County Inventory of Historic Places, The New York State Register of Historic Places, and/or The National Register of Historic Places. The database includes dates when the sites were officially listed on the County, State and National Registers. Eighteen of the locations have National Historic Landmark status. A mojor update to this data layer was completed in Jauary 2015 in which previously unmapped sites were added, and many locations of sites were corrected.

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.

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.

The stormwater data was developed to facilitate MS4 reporting. MS4 is short for "Municipal Separate Storm Sewer System". The data developed by Dolph Rotfeld Engineering and Stellar Services was captured in early 2020. This layer's drainage piepes are all county owned property. It was prepared for Westchetser County Government, Department of Public Works and Transportation.

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).

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.

This layer identifies corporate boundaries for all 43 municipal jurisdictions in Westchester County. Coverage originally obtained from New York State Office for Real Property Services (ORPS), and has been substantially modified to better align with current municipal tax parcel boundaries (WCparcels) based on a compilation of 2012 municipal tax parcel datasets. As all of Westchester's town's and cities compile their tax parcel databases independent of one another, there are situations were the tax parcels do not line up at the municipal borders, often resulting in gaps or overlaps of tax parcels at the border areas. This update sought to re-align boundaries to best follow the municipal boundaries as defined by the tax parcels, and often involved making the best possible spatial compromise where there were gaps or overlaps in tax map jurisdictions. It also reflects the 2011 municipal boundary change that resluted from the annexation of a tax parcel from the Town of Mount Pleasant to the Town of New Castle.

Food Access and Nutrition Centers 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 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 layer shows School District Boundaries in Westchester County. The school district boundaries are coded by line and identified by polygon label. School district lines were modified in 2017 to conform with municipal outbound boundaries. Inland boundaries are generalized and derived from various sources including local tax maps and master plans, school district maps and the NYS Office of Real Property Services (NYS ORPS). District boundaries were verified by each of the school districts.