Clayton County, Iowa property search
Search an address or an owner in Clayton County, Iowa with the box at the top of the map, or tap a lot, for its owner, lines and acreage. 30,979 lots are mapped here, covering 402,395 acres. 5,216 of them are held by institutions rather than by individuals.
Farmers and landowners in Clayton County received $24.5 million in federal farm program payments in 2025, paid to 1,851 recipients. 20 acres of agricultural land here are disclosed as foreign-held, the most by owners from Canada. Crop insurance paid $2.9 million in claims for the 2024 crop year.
- 30,979
- Lots mapped
- 402,395
- Acres
- 5,216
- Institutional
Land use in Clayton County
Parcels and acreage by land use in Clayton County, Iowa| Land use | Parcels | Acres |
|---|
| A | 18,566 | 343,153 |
|---|
| R | 7,505 | 7,879 |
|---|
| A, AD | 2,163 | 51,153 |
|---|
| E | 1,249 | 0 |
|---|
| C | 804 | 110 |
|---|
| C, R | 139 | 98 |
|---|
| I | 99 | 3 |
|---|
| M | 71 | 0 |
|---|
| C, M | 26 | 0 |
|---|
Largest landowners in Clayton County
Largest landowners by acreage in Clayton County, Iowa| Owner | Parcels | Acres |
|---|
| NIEHAUS INC | 81 | 2,327 |
|---|
| BKC VISTA LLC | 24 | 1,313 |
|---|
| BCC LAND LLC | 33 | 1,034 |
|---|
| COSTIGAN BLACK VALLEY FARMS LLC | 42 | 1,021 |
|---|
| WALTHER FARMS INC | 39 | 1,019 |
|---|
| KLINK FAMILY FARMS LLC | 31 | 954 |
|---|
| LENTH FARMS LLC | 39 | 951 |
|---|
| BERNS INC | 33 | 945 |
|---|
| HENKES FARMS LLC | 28 | 875 |
|---|
| CASTEN FARMS LLC | 13 | 819 |
|---|
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 Iowa
Federal farm payments in Clayton County
- $24.5M
- Paid in 2025
- 1,851
- Recipients
Federal farm program payments by program in Clayton County, Iowa, 2025| Program | Paid |
|---|
| CRP Payment - Annual Rental | $10M |
|---|
| Emergency Commodity Assistance Program | $8.1M |
|---|
| Supplemental Disaster Relief Non-Spec Crops | $4.9M |
|---|
| Emergency Livestock Relief Program 2023-24 | $779K |
|---|
| Emergency Assist Livestock Bees Fish ELAP | $251K |
|---|
| Livestock Forage Program | $138K |
|---|
USDA Farm Service Agency payment files, 2025. Compare farm subsidies by county
Foreign-held farmland in Clayton County
- 20
- Acres disclosed
- 1
- Holdings
Foreign-held agricultural land by country in Clayton County, Iowa, 2024| Country | Acres |
|---|
| Canada | 20 |
|---|
Largest disclosed holders
Largest foreign holders of agricultural land in Clayton County, Iowa| Holder (country) | Acres |
|---|
| TERRA EASTERN CORP. (CANADA) | 20 |
|---|
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 Clayton County
- 1,259
- Policies
- 198,718
- Insured acres
- $2.9M
- Claims paid
- 0.40
- Loss ratio
Crop insurance claims by crop in Clayton County, Iowa, 2024| Crop | Claims |
|---|
| Soybeans | $1.8M |
|---|
| Corn | $1M |
|---|
| Pasture,Rangeland,Forage | $119K |
|---|
| Oats | $12K |
|---|
| Forage Production | $3K |
|---|
USDA Risk Management Agency Summary of Business, 2024 crop year.
Conservation and the power grid
- 42,637
- CRP acres, 2025
- 22
- 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 Clayton County by address, free, or work out a lot's acreage.
This copy of Clayton County's records was taken on August 12, 2026. Assessment records, not a survey.