Hamilton County, IL parcel data download

Download Hamilton County, Illinois parcel data - 10,139 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: Tax year: 2024; last loaded into LandAI on 2026-06-04.

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 Hamilton County dataset

Field completeness measured across 10,139 active parcels (Tax year: 2024; last loaded into LandAI on 2026-06-04):

FieldCoverage
Owner names100%
Site addresses49.7%
Owner mailing addresses100%
Deeded acres100%
Calculated (GIS) acres100%
Assessed total value98.8%
Market total value98.8%
Legal description100%

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.

Hamilton County parcel data FAQ

How many parcels are in Hamilton County, IL?

Hamilton County, Illinois has 10,139 active parcels in the LandAI dataset (source data as of 2024).

What fields are included in Hamilton County parcel data?

The dataset uses LandAI's standardized parcel schema. Field availability varies by source and record. Current measured completeness includes owner names (100%), site addresses (49.7%), owner mailing addresses (100%), deeded acres (100%), calculated (GIS) acres (100%), assessed total value (98.8%), market total value (98.8%), legal description (100%).

What formats can I download Hamilton County 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 Hamilton County parcel data?

Tax year: 2024; last loaded into LandAI on 2026-06-04.

Does Hamilton County parcel data include owner names?

100% of Hamilton 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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