Free Parcel Data

Illinois Clay County

Vintages

GEOID17025
Aged

2 snapshots on file, newest October 2022.

Vintage history

Vintage Source Parcels Fields Quality Formats Download
2022-10-21 · 3 years old Archive 15.6k 37 92 gpkg shp Get
2020-04-15 · 6 years old Archive 15.6k 16 92 gpkg shp Get

Newest vintage

Archive vintage

2022-10-21

3 years old

92 quality
Parcels
15,619
Fields
37
Size
17.7 MB
Complete
82%
  • gpkg
  • shp

15,619 parcel features, 37 attributes, 82% weighted attribute fill. Reprojected to WGS 84 (EPSG:4326); geometries repaired where invalid. Point-in-time snapshot. No cross-county schema normalisation.

Reading this history

Each row is a distinct point-in-time snapshot of Clay County, not a revision of one file. Parcel counts move between vintages for real reasons — subdivision, consolidation, annexation, a re-survey — so a jump in the count is information rather than an error. This county's record here spans April 2020 to October 2022.

Archive vintages are released once they are old enough to be non-competitive; community vintages are contributed by users and published as soon as they pass verification. Both are free.