Grundy County, Illinois property search
Search an address or an owner in Grundy County, Illinois with the box at the top of the map, or tap a lot, for its owner, lines and acreage. 27,032 lots are mapped here, covering 279,016 acres. 4,746 of them are held by institutions rather than by individuals.
Farmers and landowners in Grundy County received $11.9 million in federal farm program payments in 2025, paid to 847 recipients. 15,015 acres of agricultural land here are disclosed as foreign-held, the most by owners from Portugal. Crop insurance paid $2.5 million in claims for the 2024 crop year.
- 27,032
- Lots mapped
- 279,016
- Acres
- 4,746
- Institutional
Largest landowners in Grundy County
Largest landowners by acreage in Grundy County, Illinois| Owner | Parcels | Acres |
|---|
| MIDWEST GENERATION LLC | 29 | 3,673 |
|---|
| COMMONWEALTH EDISON COMPANY | 184 | 2,457 |
|---|
| CONSTELLATION ENERGY GENERATION LLC | 39 | 1,927 |
|---|
| JWMA PARTNERSHIP LP | 31 | 1,785 |
|---|
| MKM OIL INC | 26 | 1,595 |
|---|
| COLLINS RUN-DONALD LLC &HOLROYD HOLDINGS LLC BRPL HOLDINGS LLC & HMCOLLINS HOLDING LLC | 8 | 1,594 |
|---|
| CUNNING FAMILY LIMITED PARTNERSHIP | 21 | 1,558 |
|---|
| COAL CITY AREA CLUB | 8 | 1,503 |
|---|
| REED 1021 LLC %TAMARA HANSEN ET AL | 17 | 1,426 |
|---|
| GEMINI FARMS LLC | 25 | 1,216 |
|---|
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 Grundy County
- $11.9M
- Paid in 2025
- 847
- Recipients
Federal farm program payments by program in Grundy County, Illinois, 2025| Program | Paid |
|---|
| Emergency Commodity Assistance Program | $8.2M |
|---|
| Supplemental Disaster Relief Non-Spec Crops | $2.6M |
|---|
| CRP Payment - Annual Rental | $852K |
|---|
| Marketing Assistance for Specialty Crops | $157K |
|---|
| Agricultural Risk Coverage - Individual | $13K |
|---|
| CRP Cost-Share Web-Based | $9K |
|---|
USDA Farm Service Agency payment files, 2025. Compare farm subsidies by county
Foreign-held farmland in Grundy County
- 15,015
- Acres disclosed
- 12
- Holdings
Foreign-held agricultural land by country in Grundy County, Illinois, 2024| Country | Acres |
|---|
| Portugal | 13,339 |
|---|
| Canada | 518 |
|---|
| United Kingdom | 434 |
|---|
| Ireland | 404 |
|---|
| No foreign investor listed | 320 |
|---|
Largest disclosed holders
Largest foreign holders of agricultural land in Grundy County, Illinois| Holder (country) | Acres |
|---|
| BLACKSTONE WIND FARM II, L.L.C. (PORTUGAL) | 13,339 |
|---|
| E. I. du Pont de Nemours and Co (CANADA) | 438 |
|---|
| MINERAL AND LAND RESOURCES CORPORATION (IRELAND) | 404 |
|---|
| MATERIAL SERVICE CORPORATION (UNITED KINGDOM) | 380 |
|---|
| L.M.F. CORP. (998 - NO FOREIGN INVESTOR LISTED) | 320 |
|---|
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 Grundy County
- 1,299
- Policies
- 182,618
- Insured acres
- $2.5M
- Claims paid
- 0.32
- Loss ratio
Crop insurance claims by crop in Grundy County, Illinois, 2024| Crop | Claims |
|---|
| Corn | $1.3M |
|---|
| Soybeans | $1.2M |
|---|
| Wheat | $5K |
|---|
| Pasture,Rangeland,Forage | $3K |
|---|
USDA Risk Management Agency Summary of Business, 2024 crop year.
Conservation and the power grid
- 3,064
- CRP acres, 2025
- 19
- Substations
- 4
- 345 kV and up
- 765 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 Grundy County by address, free, or work out a lot's acreage.
This copy of Grundy County's records was taken on August 12, 2026. Assessment records, not a survey.