Rock Island County, IL GIS parcel data download

Download Rock Island County, Illinois GIS parcel data - 65,762 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: Latest public assessed_last in source: 2026-05-29; last loaded into LandAI on 2026-06-06.

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 Rock Island County dataset

Field completeness measured across 65,762 active parcels (Latest public assessed_last in source: 2026-05-29; last loaded into LandAI on 2026-06-06):

FieldCoverage
Owner names100%
Site addresses92.3%
Owner mailing addresses100%
Deeded acres100%
Calculated (GIS) acres100%
Assessed total value100%
Market total value100%
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.

Rock Island County parcel data FAQ

How many parcels are in Rock Island County, IL?

Rock Island County, Illinois has 65,762 active parcels in the LandAI dataset (source data as of 2026-05-29).

What fields are included in Rock Island County parcel data?

Every parcel includes the standardized LandAI schema: parcel ID and geometry plus owner names (100%), site addresses (92.3%), owner mailing addresses (100%), deeded acres (100%), calculated (GIS) acres (100%), assessed total value (100%), market total value (100%), legal description (100%), and more.

What formats can I download Rock Island 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 Rock Island County parcel data?

Latest public assessed_last in source: 2026-05-29; last loaded into LandAI on 2026-06-06.

Does Rock Island County parcel data include owner names?

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

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