Download Westchester County, New York parcel data - 258,080 parcels with standardized boundaries and available property fields. Review county-specific completeness before checkout. Instant delivery in Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. $100 per county.
Data freshness: NYS ITS/ORPTS 2025 assessment roll attributes; NYS Tax Parcels Public publication date: May 2026; last loaded into LandAI on 2026-05-13.
Every purchase includes all five export formats (Shapefile, FileGDB, GeoPackage, GeoJSON & CSV), standardized to the LandAI parcel schema with WGS84 (EPSG:4326) geometry. After checkout you choose which formats to generate and download them for 45 days.
Field completeness measured across 258,080 active parcels (NYS ITS/ORPTS 2025 assessment roll attributes; NYS Tax Parcels Public publication date: May 2026; last loaded into LandAI on 2026-05-13):
| Field | Coverage |
|---|---|
| Owner names | 99.6% |
| Site addresses | 99.6% |
| Owner mailing addresses | 99.3% |
| Deeded acres | 94.3% |
| Calculated (GIS) acres | 100% |
| Land use | 2.8% |
| Assessed total value | 99.6% |
| Market total value | 99.6% |
| Year built | 46.1% |
| Building square footage | 43.6% |
These are 10 of the 48 standardized fields in the LandAI parcel schema. Live per-field completeness for every field is shown on this page's interactive view.
Westchester County, New York has 258,080 active parcels in the LandAI dataset (source data as of 2025).
The dataset uses LandAI's standardized parcel schema. Field availability varies by source and record. Current measured completeness includes owner names (99.6%), site addresses (99.6%), owner mailing addresses (99.3%), deeded acres (94.3%), calculated (GIS) acres (100%), land use (2.8%), assessed total value (99.6%), market total value (99.6%).
Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. Every $100 county purchase includes all five formats; you choose which to generate after checkout and can re-download for 45 days.
NYS ITS/ORPTS 2025 assessment roll attributes; NYS Tax Parcels Public publication date: May 2026; last loaded into LandAI on 2026-05-13.
99.6% of Westchester County parcels currently include a normalized owner name. Mailing-address coverage is measured and reported separately when the source provides it.
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