Brown County
Parcel & Property Data
About This Data
LandBrief holds 5,208 parcel records for Brown 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 Brown County assessor roll dated July 2025, loaded August 2026. See data sources for every county’s vintage.
Explore Brown County
Brown County by the Numbers
- Median parcel size
- 9.2 acres
measured from mapped boundaries - 90th-percentile parcel
- 98.9 acres
- County land area
- 195,665 acres
U.S. Census measurement - Communities
- 7
49.4% of parcels outside any incorporated place - Out-of-state owners
- 8.4% of parcels
by owner mailing address
Who Owns Brown County?
Share of the county’s 5,208 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 | 69.5% |
| Companies & organizations | 12.8% |
| Trusts & estates | 15.1% |
| Government | 1.3% |
| Other / unclassified | 1.2% |
The largest owner on record is ZIMMERMAN ROGER with 28 parcels — see the full landowner leaderboard.
Parcel Records (~5,208 total)
| Parcel ID | Owner | Address | City | Acreage |
|---|---|---|---|---|
| 09-00-600-200 | SUGAR CREEK OUTFITTERS ILLINOIS III LLC | — | Unincorporated | 664.00 |
| 09-00-201-000 | IL DEPT OF NATURAL RESOURCES DIVISION OF REALTY | — | Unincorporated | 645.90 |
| 09-00-700-900 | IL DEPT OF NATURAL RESOURCES DIVISION OF REALTY | — | Unincorporated | 600.00 |
| 04-00-100-800 | IL DEPT OF TRANSPORTATION | — | Unincorporated | 505.00 |
| 09-00-300-600 | IL DEPT OF NATURAL RESOURCES DIVISION OF REALTY | — | Unincorporated | 497.11 |
| 04-00-100-100 | IL DEPT OF TRANSPORTATION | — | Unincorporated | 492.00 |
| 09-02-100-100 | NEWTON JUDITH I | — | Unincorporated | 450.00 |
| 09-00-700-100 | IL DEPT OF NATURAL RESOURCES DIVISION OF REALTY | — | Unincorporated | 440.00 |
| 09-00-801-300 | DESUTTER JOAN TRUST | — | Unincorporated | 415.75 |
| 03-01-500-300 | TWIN HOLLOWS INC | — | Unincorporated | 400.00 |
Download Brown County parcel data
All 5,208 parcels in Brown County as a single file — free, no account needed. Shapefile, GeoJSON, GeoPackage, CSV and Parquet.
Get Brown County on FreeParcelData →Nearby counties
Frequently Asked Questions
How many parcels are in Brown County?
The Brown County assessor roll on file records 5,208 parcels across 7 communities, with 49.4% lying outside any incorporated place.
Who owns the most land in Brown County?
ZIMMERMAN ROGER holds 28 parcels, the most of any owner on record — the largest-landowners leaderboard ranks the top 25.
What is the typical parcel size in Brown County?
Measured from mapped boundaries, the median parcel is 9.2 acres, and nine parcels in ten are under 98.9 acres. Boundary-measured area closely tracks deeded acreage but is not the deed.
How much of Brown County is owned from out of state?
8.4% of parcels list an owner mailing address outside IL, per the county’s own records.
How much of Brown County is government-owned?
Government entities — federal, state, and local — hold 1.3% of the county’s parcels, classified from owner names on the roll.
How current is this data?
It comes from the Brown 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.
Browse by City (7)
5,208 parcels across 7 communities in Brown County.