A point-in-time snapshot released from the archive.
Newest snapshot 2 vintages published
January 2024
2 years old · released from the archive
Free. Confirm an email address and the download starts — no account, no card.
Parcel data is point-in-time. An older vintage is the right download when you need the roll as it stood on a particular date.
Archive vintage
4 years old
42,622 parcel features, 36 attributes, 78% weighted attribute fill. Reprojected to WGS 84 (EPSG:4326); geometries repaired where invalid. Point-in-time snapshot. No cross-county schema normalisation.
36 attribute fields recorded for this county. No two assessors use the same names — these are Williamson's.
| Field | Type | Filled | Example values |
|---|---|---|---|
| objectid | OFTInteger | 44155, 44157, 44158 | |
| pin | OFTString | 09-31-100-001, 09-31-200-002, 09-31-300-001 | |
| owner_name | OFTString | UNITED STATES DEPT OF INTERIOR, UNITED STATES DEPT OF INTERIOR, UNITED STATES DEPT OF INTERIOR | |
| legal_desc | OFTString | EX 1.24A, N + S EX THAT PT OF NE NW LYING S OF PUBLIC RD, THAT PT LYING S OF PUB RD NE NW 390-140 5-2-79 | |
| location | OFTString | 1053 SKELCHER BLVD; MAKANDA IL; 62958, 3055 MYERS LN; MAKANDA IL; 62958, SKELCHER BLVD; MAKANDA IL; 62958 | |
| billing_na | OFTString | US FISH & WILDLIFE SERVICE; DIVISION OF REALTY, US FISH & WILDLIFE SERVICE; DIVISION OF REALTY, US FISH & WILDLIFE SERVICE; DIVISION OF REALTY | |
| billingadd | OFTString | 5600 AMERICAN BLVD W STE 990; BLOOMINGTON MN; 55437, 5600 AMERICAN BLVD W STE 990; BLOOMINGTON MN; 55437, 5600 AMERICAN BLVD W STE 990; BLOOMINGTON MN; 55437 | |
| township | OFTString | Grassy, Grassy, Grassy | |
| usecode | OFTString | 0090, 0090, 0090 | |
| usecodedes | OFTString | Exempt, Exempt, Exempt | |
| book | OFTString | 519, 495, 499 | |
| page | OFTString | 761, 400, 788 |
Williamson County is one of 102 counties in Illinois, GEOID 17199, covering 420 square miles of land.
The datasets here are point-in-time snapshots of the county's public parcel records, published as received. They are not normalised against other counties and they are not live — the newest vintage on this page is January 2024, which is 2 years old. Check the field list before you commit to a download; the column names are the county's own.