Download Ada County, Idaho GIS parcel data - 221,934 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: Tax roll year 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.
Field completeness measured across 221,934 active parcels (Tax roll year 2026; last loaded into LandAI on 2026-05-21):
| Field | Coverage |
|---|---|
| Site addresses | 100% |
| Deeded acres | 100% |
| Calculated (GIS) acres | 100% |
| Land use | 100% |
| Market total value | 96.6% |
| Legal description | 100% |
These are 6 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.
Ada County, Idaho has 221,934 active parcels in the LandAI dataset (source data as of 2026).
Every parcel includes the standardized LandAI schema: parcel ID and geometry plus site addresses (100%), deeded acres (100%), calculated (GIS) acres (100%), land use (100%), market total value (96.6%), legal description (100%), and more.
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.
Tax roll year 2026; last loaded into LandAI on 2026-05-21.
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