Sonoma County, California
Sonoma County, CA: non-irrigated cash rent $58 an acre (2026); land and buildings $30,475 an acre in the 2022 census. County averages from public records, not an appraisal of any farm. FIPS 06097. Figures as of 2026-09-20.
Irrigated cash rent in Sonoma County runs $1,300 per acre against $58 per acre for non-irrigated ground in 2026. The census value of land and buildings sits at $30,475 per acre, up 37.4 percent from 2017 to 2022, 6.6 percent a year. Heat and drought's share of crop insurance indemnities has moved from 3 percent in 1989-1999 to 18 percent in 2000-2009 to 21 percent in 2010-2019 to 25 percent in 2020-2025. The county logged 105 weeks in severe drought or worse from 2021-2025, out of 328 such weeks across 2000-2025. July nightly lows have warmed at 0.32 F per decade since 1976, with the 2017-2026 average at 53.7 F against a 1991-2020 normal of 53.2 F.
CA median $35 · 5th highest of 20
CA median $431 · 7th highest of 40
CA median $11,471 · 4th highest of 52
CA median $7.22 · 14th highest of 42
CA median 43% · 19th lowest of 55
Cash rent
Dollars per acre, USDA NASS county survey. A break in a line is a year with no published survey; nothing is drawn across it.
Land value
Corn yield
Crop insurance record
Claims paid divided by total premium (the farmer share plus the federal subsidy), each closed crop year since 1989. Above the dashed line, the county's insurance book paid out more than it took in. 2026, still open, is left out.
Drought and weather
Weeks per year, U.S. Drought Monitor, with half the county or more in D2 (severe) drought or worse.
Land, water and programs
Acres enrolled in the Conservation Reserve Program, USDA FSA, by fiscal year.
Next door
| County | Dry rent | Irr. rent | Land value | Claims per $100 |
|---|---|---|---|---|
| Sonoma County | $58 | $1,300 | $30,475 | $8.06 |
| Lake County | — | $491 | $7,833 | $12.65 |
| Marin County | $64 | $1,290 2025 | $7,636 | — |
| Mendocino County | — | $1,290 | $6,511 | $7.96 |
| Napa County | $21 2024 | $4,000 | $61,295 | $7.18 |
| Solano County | $30 | $257 | $12,901 | $6.37 |
| Median next door | $47 2 co. | $891 | $7,833 | $7.57 |
Counties that share a stretch of boundary. An older rent carries its year and stays out of the median.
Cite this page
AGSIST Farmland Atlas. Sonoma County, California. Figures as of 2026-09-20, from USDA NASS, USDA RMA, USDA FSA, the U.S. Drought Monitor and NOAA. https://agsist.com/farmland-atlas/california/sonoma-countyEvery figure is a county average from the sources named below. Ranks count counties with 10,000 acres or more in farms, in the same survey year for rent, within the state. Methods: how each figure is built. Downloads: all counties, CSV.
Sources, dates and arithmetic
"Figures as of" is the date this page's numbers last changed; it moves only when a figure on the page does. Source files and their retrieval dates are listed on the data page.
Rent: USDA NASS Cash Rents Survey, county. Land value: Census of Agriculture, operators' estimate of land and buildings. Yield: NASS county corn yields, trend fitted here over every published year since 2008. Loss ratio: claims (indemnity) divided by total premium, USDA RMA Summary of Business, 1989 on, open crop year left out. Drought: U.S. Drought Monitor, weeks with half the county or more in D2 or worse. July lows: NOAA nClimDiv county monthly minimum temperature. A dash means the record does not carry the figure or the source withheld it; the reason is printed beside it.