Clinton County

Parcel & Property Data

26,346Total Parcels

—Avg. Market Value

279,399Total Acres

About This Data

LandBrief holds 26,346 parcel records for Clinton County, sourced from county records. Each includes the parcel boundary, and — where the county publishes them — owner, situs address, acreage, assessed values and legal description.

Data from the Clinton County assessor roll dated July 2025, loaded August 2026. See data sources for every county’s vintage.

Explore Clinton County

Largest landownersWho holds the most land in Clinton County, by total acreage.
Largest parcelsThe biggest individual tracts in the county, ranked by size.
Out-of-state ownersWho owns Clinton County from somewhere else, and where they live.

Clinton County by the Numbers

Median parcel size: 0.71 acres
measured from mapped boundaries
90th-percentile parcel: 40.3 acres
County land area: 303,322 acres
U.S. Census measurement
Communities: 23
34.1% of parcels outside any incorporated place
Out-of-state owners: 3.7% of parcels
by owner mailing address

Who Owns Clinton County?

Share of the county’s 26,346 parcels by the kind of owner on record. Classified from owner names, so the boundaries are approximate; an entity the rules cannot place counts as an individual.

Owner type	Share of parcels
Individuals	70.6%
Companies & organizations	8.6%
Trusts & estates	16.8%
Government	3.5%
Other / unclassified	0.5%

The largest owner on record is U S GOVERNMENT with 185 parcels — see the full landowner leaderboard.

Parcel Records (~26,346 total)

Showper page

Parcel ID	Owner	Address	City	Acreage
04-04-28-100-001	KNOLHOFF JO ANN & ROGER	17827 SHATTUC RD	Unincorporated	330.00
04-04-28-300-001	SCHNEIDER JUDY L TRUST	26701 WORTMAN RD	Unincorporated	310.00
14-13-06-100-004	BRINKMANN VIOLA	JONATHAN RD	Unincorporated	253.46
14-13-07-300-001	WUEBBELS JEROME LIFE ESTATE	—	Unincorporated	244.00
08-08-19-300-003	JONDRO FARMS LLC	—	Unincorporated	227.09
08-08-07-100-011	WARREN WILLIAM W TRUST #86-1	3300 GOVERNORS DR	Carlyle	218.76
06-06-06-100-004	LAWRENCE DOUGLAS S ET AL	15424 SCHUMACHER RD	Aviston	218.21
09-08-22-300-002	SCHNITKER EARL & SHIRLEY	SAND RIDGE RD	Unincorporated	206.00
08-08-30-100-024	JONDRO FARMS LLC	11842 STATE ROUTE 127	Unincorporated	197.04
10-09-18-300-005	BRINKMANN VIOLA	U S HWY 50	Unincorporated	174.68

Page 1 of 2635

Download Clinton County parcel data

All 26,346 parcels in Clinton County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.

Get Clinton County on FreeParcelData →

Nearby counties

Frequently Asked Questions

How many parcels are in Clinton County?

The Clinton County assessor roll on file records 26,346 parcels across 23 communities, with 34.1% lying outside any incorporated place.

Who owns the most land in Clinton County?

U S GOVERNMENT holds 185 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.

What is the typical parcel size in Clinton County?

Measured from mapped boundaries, the median parcel is 0.71 acres, and nine parcels in ten are under 40.3 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.

How much of Clinton County is owned from out of state?

3.7% of parcels list an owner mailing address outside IL, per the county’s own records.

How much of Clinton County is government-owned?

Government entities — federal, state, and local — hold 3.5% of the county’s parcels, classified from owner names on the roll.

How current is this data?

It comes from the Clinton County assessor roll dated July 2025. Counties deliver on their own schedules; the methodology page explains how records are processed and the data sources page tracks every county’s vintage.