Description: NYS Publication Date: May 2026. This file contains 2025 parcel data only for NY State Counties which gave ITS NYS Geospatial Services permission to share this data with the public. To date, 38 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. Attribute values were populated using 2025 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 parcel data comes from NYC MapPluto: https://www.nyc.gov/content/planning/pages/resources/datasets/mappluto-pluto-changeWestchester County downloaded this data layer from NYS and only selected the parcels in Westchester County. Municipalities share their geometry with the county and we share that with NYS.
Service Item Id: b8e86da2e62940ca96ec5a32bab4b3aa
Copyright Text: Contributing counties, NYS Office of Information Technology Services Geospatial Services and NYS Department of Taxation and Finance’s Office of Real Property Tax Services (ORPTS).