Allegany County, NY GIS parcel data download

Download Allegany County, New York GIS parcel data - 34,083 parcels with owner names, site & mailing addresses, acreage, land use, and sale values. Instant delivery in Shapefile, FileGDB, GeoPackage, GeoJSON & CSV. $100 per county.

Data freshness: County parcel polygons joined to NYS ITS/ORPTS 2025 assessment-roll owner/mailing attributes; NYS centroid publication date: May 2026; last loaded into LandAI on 2026-05-21.

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.

What's in the Allegany County dataset

Field completeness measured across 34,083 active parcels (County parcel polygons joined to NYS ITS/ORPTS 2025 assessment-roll owner/mailing attributes; NYS centroid publication date: May 2026; last loaded into LandAI on 2026-05-21):

FieldCoverage
Owner names99.8%
Site addresses97.4%
Owner mailing addresses96.3%
Calculated (GIS) acres100%
Land use4.9%
Market total value96.7%
Year built57.0%
Building square footage52.8%

These are 8 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.

Allegany County parcel data FAQ

How many parcels are in Allegany County, NY?

Allegany County, New York has 34,083 active parcels in the LandAI dataset (source data as of 2025).

What fields are included in Allegany County parcel data?

Every parcel includes the standardized LandAI schema: parcel ID and geometry plus owner names (99.8%), site addresses (97.4%), owner mailing addresses (96.3%), calculated (GIS) acres (100%), land use (4.9%), market total value (96.7%), year built (57.0%), building square footage (52.8%), and more.

What formats can I download Allegany County GIS parcel data in?

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.

How current is the Allegany County parcel data?

County parcel polygons joined to NYS ITS/ORPTS 2025 assessment-roll owner/mailing attributes; NYS centroid publication date: May 2026; last loaded into LandAI on 2026-05-21.

Does Allegany County parcel data include owner names?

Yes - 99.8% of Allegany County parcels include a normalized owner name, along with owner mailing addresses where the county provides them.

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