San Joaquin County, California property search
Search an address or an owner in San Joaquin County, California with the box at the top of the map, or tap a lot, for its owner, lines and acreage. 252,719 lots are mapped here, covering 1,053,141 acres. 31,160 of them are held by institutions rather than by individuals.
Farmers and landowners in San Joaquin County received $91.3 million in federal farm program payments in 2025, paid to 1,171 recipients. 27,972 acres of agricultural land here are disclosed as foreign-held, the most by owners from Netherlands. Crop insurance paid $64.5 million in claims for the 2024 crop year.
- 252,719
- Lots mapped
- 1,053,141
- Acres
- 31,160
- Institutional
Land use in San Joaquin County
Parcels and acreage by land use in San Joaquin County, California| Land use | Parcels | Acres |
|---|
| 10 | 179,228 | 32,516 |
|---|
| 51 | 8,064 | 216,534 |
|---|
| 11 | 4,997 | 32 |
|---|
| 6A | 4,695 | 977 |
|---|
| 1A | 4,214 | 879 |
|---|
| 21 | 3,919 | 676 |
|---|
| 400 | 3,201 | 130,333 |
|---|
| 401 | 1,903 | 70,822 |
|---|
| 22 | 1,889 | 887 |
|---|
| 420 | 1,679 | 68,367 |
|---|
| 450 | 1,555 | 106,378 |
|---|
| 17 | 1,416 | 126 |
|---|
Largest landowners in San Joaquin County
Largest landowners by acreage in San Joaquin County, California| Owner | Parcels | Acres |
|---|
| METRO WATER DISTRICT OF SOUTHERN CALI | 56 | 10,130 |
|---|
| WILLIAM BROWN FOUNDATION | 24 | 9,094 |
|---|
| VICTORIA ISLAND LP | 25 | 7,000 |
|---|
| DUANE MARTIN RANCHES LP | 21 | 6,230 |
|---|
| CONNOLLY RANCH, INC | 18 | 6,022 |
|---|
| UNION LIVESTOCK INC | 12 | 5,342 |
|---|
| CALIFORNIA, STATE OF | 177 | 4,624 |
|---|
| CORTOPASSI PARTNERS LP | 29 | 4,313 |
|---|
| VFLP CALIFORNIA LLC | 10 | 4,239 |
|---|
| CONTRA COSTA WATER DISTRICT | 10 | 3,950 |
|---|
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 California
Federal farm payments in San Joaquin County
- $91.3M
- Paid in 2025
- 1,171
- Recipients
Federal farm program payments by program in San Joaquin County, California, 2025| Program | Paid |
|---|
| Marketing Assistance for Specialty Crops | $46M |
|---|
| Emergency Assist Livestock Bees Fish ELAP | $23.4M |
|---|
| Supplemental Disaster Relief Spec Crops | $17.8M |
|---|
| Emergency Commodity Assistance Program | $2M |
|---|
| WECPCSCOF | $535K |
|---|
| Tree Assistance Program | $426K |
|---|
USDA Farm Service Agency payment files, 2025. Compare farm subsidies by county
Foreign-held farmland in San Joaquin County
- 27,972
- Acres disclosed
- 57
- Holdings
Foreign-held agricultural land by country in San Joaquin County, California, 2024| Country | Acres |
|---|
| Netherlands | 7,768 |
|---|
| Liechtenstein | 7,181 |
|---|
| Canada | 4,151 |
|---|
| Germany | 2,197 |
|---|
| Ireland | 1,413 |
|---|
| Virgin Islands (british) | 1,140 |
|---|
Largest disclosed holders
Largest foreign holders of agricultural land in San Joaquin County, California| Holder (country) | Acres |
|---|
| SOUTH REAL ESTATE CO. (LIECHTENSTEIN) | 5,280 |
|---|
| MARTEL CO. N.V. (NETHERLANDS) | 2,510 |
|---|
| R & M Almonds, LLC (CANADA) | 1,484 |
|---|
| HOLLY SUGAR CORPORATION (IRELAND) | 1,413 |
|---|
| ROVENTA CORP (NETHERLANDS) | 1,372 |
|---|
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 San Joaquin County
- 1,872
- Policies
- 337,936
- Insured acres
- $64.5M
- Claims paid
- 1.26
- Loss ratio
Crop insurance claims by crop in San Joaquin County, California, 2024| Crop | Claims |
|---|
| Cherries | $17.1M |
|---|
| Grapes | $12.5M |
|---|
| Walnuts | $7.7M |
|---|
| Almonds | $7.3M |
|---|
| Blueberries | $5.9M |
|---|
USDA Risk Management Agency Summary of Business, 2024 crop year.
Conservation and the power grid
- 106
- Substations
- 230 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 San Joaquin County by address, free, or work out a lot's acreage.
This copy of San Joaquin County's records was taken on August 11, 2026. Assessment records, not a survey.