Nuts · 2022 Census of Agriculture
Where are walnuts grown?
California grows the most walnuts: at least 81% of the 365,950 bearing acres of walnuts in the US in 2022. Its state total is withheld to protect individual farms; its counties with published figures alone add up to that share.
Among states with published figures, Oregon (under 1%) and Ohio (under 1%) come next.
- US total, 2022 Census
- 365,950 acresbearing acres
- Top state
- Californiaat least 81% of total
- Farms reporting, 2022
- 5,682in 41 states
- Farm value, 2025
- $1.3 billionvalue of production
Source: USDA National Agricultural Statistics Service. State view: 2022 Census of Agriculture. County view: 2022 Census of Agriculture (bearing acres). English walnuts, the common grocery walnut.
Which state grows the most walnuts?
California grows the most walnuts: at least 81% of the 365,950 bearing acres of walnuts in the US in 2022. Its state total is withheld to protect individual farms; its counties with published figures alone add up to that share. Ranked by the 2022 Census of Agriculture (bearing acres).
* Rank among states with published figures. A state whose figure is withheld could rank higher.
Which counties grow the most walnuts?
From the 2022 Census of Agriculture, which reports walnuts for 507 counties. NASS withholds 409 of those county figures to protect individual farms, so a withheld county could be larger than some listed here.
| County | Bearing acres | Share of US |
|---|---|---|
| San Joaquin County, CA | 65,741 | 18% |
| Butte County, CA | 43,881 | 12% |
| Stanislaus County, CA | 30,389 | 8% |
| Sutter County, CA | 27,419 | 7% |
| Tehama County, CA | 26,852 | 7% |
| Glenn County, CA | 26,080 | 7% |
| Kings County, CA | 14,988 | 4% |
| Colusa County, CA | 14,806 | 4% |
| Fresno County, CA | 12,774 | 3% |
| Solano County, CA | 11,497 | 3% |
| Merced County, CA | 11,359 | 3% |
| Yolo County, CA | 10,686 | 3% |
| San Luis Obispo County, CA | 1,860 | under 1% |
| Washington County, OR | 1,059 | under 1% |
| Shasta County, CA | 468 | under 1% |
How has US production of walnuts changed?
NASS annual estimates, 2007 to 2025.
Walnuts by the numbers
Each note is calculated from USDA NASS data; the source is listed under it.
How widespread
Farms in 41 states reported walnuts in the 2022 Census of Agriculture, 5,682 farms in all.
2022 Census of Agriculture
Top county
San Joaquin County, California has 18% of the bearing acres of walnuts in the US, the most of any county with a published figure.
2022 Census of Agriculture
Ten-year change
US production of walnuts rose 33% between 2015 and 2025, from 606,000 tons to 809,000 tons.
NASS annual estimates
Biggest year
The biggest year in NASS estimates since 2007 was 2023, at 828,000 tons.
NASS annual estimates
Farm value
NASS puts the value of US walnuts production in 2025 at $1.3 billion.
NASS annual estimates
Census to Census
Bearing acres of walnuts in the US rose 49% between the 2002 and 2022 Censuses of Agriculture, from 244,907 acres to 365,950 acres.
Censuses of Agriculture, 2002 to 2022
About this data
English walnuts, the common grocery walnut.
State and national figures come from the 2022 Census of Agriculture. County figures and the county map come from the 2022 Census of Agriculture, the only source that covers every county. NASS withholds some figures, marked "withheld", to avoid disclosing data for individual farms.
Source: USDA National Agricultural Statistics Service, Quick Stats. Series: WALNUTS, ENGLISH - ACRES BEARING; WALNUTS, ENGLISH, UTILIZED, IN SHELL - PRODUCTION, MEASURED IN TONS. Data processed 2026-11-06. Methodology.