Description: Data comes from various sources including municipal tax parcels, Department of Planning WCPROPS, Department of Public Works Digital Property Surveys. An attempt was made in 2015 to use then-current tax parcel boundaries and clean areas where the properties did not meet tax parcel lines. In 2016, all county owned properties which can be recognized by a "common name”, whether it is a single parcel, multiple parcel, a building, large or small, are all in one single properties layers. The data was created in June, 2016 and updated in March 2018 and June 2025.
Description: Data comes from various sources including municipal tax parcels, Department of Planning WCPROPS, Department of Public Works Digital Property Surveys. An attempt was made in 2015 to use then-current tax parcel boundaries and clean areas where the properties did not meet tax parcel lines. In 2016, all county owned properties which can be recognized by a "common name”, whether it is a single parcel, multiple parcel, a building, large or small, are all in one single properties layers. The data was created in June, 2016 and updated in March 2018 and June 2025.
Description: State designated Wetlands as compiled by NYS Department of Environmental Conservation. This coverage provides a definitive inventory of state designated Wetlands (greater than 12.4 acres) in Westchester County. Coverage is based on official New York State Freshwater Wetlands Maps as described in Article 24-0301 of the Environmental Conservation Law. Coverages are not, however, a legal substitute for the official maps. For more information go to the NYSDEC website, http://www.dec.state.ny.us.
Description: The Digital Flood Insurance Rate Map (DFIRM) Database depicts flood risk information and supporting data used to develop the risk data. The primary risk classifications used are the 1-percent-annual-chance flood event, the 0.2-percent-annual-chance flood event, and areas of minimal flood risk. The DFIRM Database is derived from Flood Insurance Studies (FISs), previously published Flood Insurance Rate Maps (FIRMs), flood hazard analyses performed in support of the FISs and FIRMs, and new mapping data, where available. The FISs and FIRMs are published by the Federal Emergency Management Agency (FEMA). The file is georeferenced to earth's surface using the UTM projection and coordinate system.The specifications for the horizontal control of DFIRM data files are consistent with those required for mapping at a scale of 1:12,000.
Description: Data comes from various sources including municipal tax parcels, Department of Planning WCPROPS, Department of Public Works Digital Property Surveys. An attempt was made in 2015 to use then-current tax parcel boundaries and clean areas where the properties did not meet tax parcel lines. In 2016, all county owned properties which can be recognized by a "common name”, whether it is a single parcel, multiple parcel, a building, large or small, are all in one single properties layers. The data was created in June, 2016 and updated in March 2018 and June 2025.
Description: This polygon coverage identifies corporate boundaries for all 45 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.
Copyright Text: Westchester County Department of Planning
Description: Data comes from various sources including municipal tax parcels, Department of Planning WCPROPS, Department of Public Works Digital Property Surveys. An attempt was made in 2015 to use then-current tax parcel boundaries and clean areas where the properties did not meet tax parcel lines. In 2016, all county owned properties which can be recognized by a "common name”, whether it is a single parcel, multiple parcel, a building, large or small, are all in one single properties layers. The data was created in June, 2016 and updated in March 2018 and June 2025.