Lewis County, NY GIS parcel data download

Download Lewis County, New York GIS parcel data - 24,686 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: NYS ITS/ORPTS 2025 assessment roll attributes; NYS Tax Parcels Public publication date: May 2026; last loaded into LandAI on 2026-05-14.

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 Lewis County dataset

Field completeness measured across 24,686 active parcels (NYS ITS/ORPTS 2025 assessment roll attributes; NYS Tax Parcels Public publication date: May 2026; last loaded into LandAI on 2026-05-14):

FieldCoverage
Owner names100%
Site addresses100%
Owner mailing addresses99.6%
Deeded acres100%
Calculated (GIS) acres100%
Land use3.1%
Assessed total value100%
Market total value100%
Year built51.5%
Building square footage48.7%

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.

Lewis County parcel data FAQ

How many parcels are in Lewis County, NY?

Lewis County, New York has 24,686 active parcels in the LandAI dataset (source data as of 2025).

What fields are included in Lewis County parcel data?

Every parcel includes the standardized LandAI schema: parcel ID and geometry plus owner names (100%), site addresses (100%), owner mailing addresses (99.6%), deeded acres (100%), calculated (GIS) acres (100%), land use (3.1%), assessed total value (100%), market total value (100%), and more.

What formats can I download Lewis 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 Lewis County parcel data?

NYS ITS/ORPTS 2025 assessment roll attributes; NYS Tax Parcels Public publication date: May 2026; last loaded into LandAI on 2026-05-14.

Does Lewis County parcel data include owner names?

Yes - 100% of Lewis County parcels include a normalized owner name, along with owner mailing addresses where the county provides them.

View Lewis County pricing & coverage  |  All New York counties  |  Browse the LandAI Data Store