Williamson County, Illinois property search
Search an address or an owner in Williamson County, Illinois with the box at the top of the map, or tap a lot, for its owner, lines and acreage. 51,042 lots are mapped here, covering 279,954 acres. 7,398 of them are held by institutions rather than by individuals.
Farmers and landowners in Williamson County received $4.3 million in federal farm program payments in 2025, paid to 299 recipients. 1,283 acres of agricultural land here are disclosed as foreign-held, the most by owners from Netherlands. Crop insurance paid $4.9 million in claims for the 2024 crop year.
- 51,042
- Lots mapped
- 279,954
- Acres
- 7,398
- Institutional
Largest landowners in Williamson County
Largest landowners by acreage in Williamson County, Illinois| Owner | Parcels | Acres |
|---|
| WILLIAMSON ENERGY, LLC | 113 | 2,884 |
|---|
| OSMAN FAZENDA, LP | 67 | 2,232 |
|---|
| KIRCHNER FARMS, LLC | 34 | 1,533 |
|---|
| BARRASS FARMS, LLC | 62 | 1,409 |
|---|
| WILLIAMSON COUNTY AIRPORT | 59 | 1,106 |
|---|
| WILLIE SCARLET LAND LLC | 20 | 903 |
|---|
| JAJ LTD PARTNERSHIP & | 10 | 819 |
|---|
| ULRICH FAMILY FARMS LLC | 15 | 774 |
|---|
| HILL HAVEN OUTDOORS, LLC | 16 | 658 |
|---|
| CITY OF MARION | 428 | 643 |
|---|
Companies, trusts and public agencies, ranked by acres held under the name on the assessor's file. Private individuals are not ranked. Largest landowners in Illinois
Federal farm payments in Williamson County
- $4.3M
- Paid in 2025
- 299
- Recipients
Federal farm program payments by program in Williamson County, Illinois, 2025| Program | Paid |
|---|
| Emergency Commodity Assistance Program | $1.5M |
|---|
| Agricultural Risk Coverage Program - County | $1.3M |
|---|
| Supplemental Disaster Relief Non-Spec Crops | $1.1M |
|---|
| CRP Payment - Annual Rental | $299K |
|---|
| CRP Cost-Share Web-Based | $9K |
|---|
| CRP - Continuous Pip | $7K |
|---|
USDA Farm Service Agency payment files, 2025. Compare farm subsidies by county
Foreign-held farmland in Williamson County
- 1,283
- Acres disclosed
- 2
- Holdings
Foreign-held agricultural land by country in Williamson County, Illinois, 2024| Country | Acres |
|---|
| Netherlands | 1,179 |
|---|
| Greece | 104 |
|---|
Largest disclosed holders
Largest foreign holders of agricultural land in Williamson County, Illinois| Holder (country) | Acres |
|---|
| (NETHERLANDS) | 1,179 |
|---|
USDA Agricultural Foreign Investment Disclosure Act filings, holdings at the end of 2024. Only disclosed interests are counted. See foreign-owned farmland by county
Crop insurance in Williamson County
- 296
- Policies
- 59,391
- Insured acres
- $4.9M
- Claims paid
- 1.12
- Loss ratio
Crop insurance claims by crop in Williamson County, Illinois, 2024| Crop | Claims |
|---|
| Corn | $2.5M |
|---|
| Soybeans | $2.3M |
|---|
| Wheat | $53K |
|---|
| Pasture,Rangeland,Forage | $2K |
|---|
USDA Risk Management Agency Summary of Business, 2024 crop year.
Conservation and the power grid
- 3,372
- CRP acres, 2025
- 43
- Substations
- 161 kV
- Highest voltage
Conservation Reserve Program acres under contract (USDA FSA). Substations in service, from a public copy of the federal HIFLD layer.
Find out who owns a property in Williamson County by address, free, or work out a lot's acreage.
Williamson County last published these records on September 17, 2025. Assessment records, not a survey.