Vegetables · NASS annual estimates, 2025
Where are onions grown?
Washington grows the most onions: 28% of the 8.2 billion pounds grown in the eight states NASS surveyed in 2025.
Next come California (24%) and Oregon (22%).
- Surveyed states, 2025
- 8.2 billion poundstotal of the 8 states NASS surveys
- Top state
- Washington28% of total
- Farms reporting, 2022
- 8,839in 50 states
- Farm value, 2025
- $1.6 billionvalue of production
Source: USDA National Agricultural Statistics Service. State view: NASS annual estimates, 2025. County view: 2022 Census of Agriculture (acres harvested). Dry bulb onions (not green onions).
Which state grows the most onions?
Washington grows the most onions: 28% of the 8.2 billion pounds grown in the eight states NASS surveyed in 2025. Ranked by NASS's 2025 estimate.
All states ranked for onions, with year-by-year leaders →
NASS's annual estimate for onions covers 8 states. In the 2022 Census of Agriculture, those states held at least 89% of US acres harvested.
Which counties grow the most onions?
From the 2022 Census of Agriculture, which reports onions for 1,616 counties. NASS withholds 781 of those county figures to protect individual farms, so a withheld county could be larger than some listed here.
| County | Acres harvested | Share of US |
|---|---|---|
| Imperial County, CA | 21,666 | 13% |
| Fresno County, CA | 11,619 | 7% |
| Benton County, WA | 10,549 | 6% |
| Malheur County, OR | 10,030 | 6% |
| Canyon County, ID | 9,922 | 6% |
| Grant County, WA | 9,653 | 6% |
| Morrow County, OR | 7,687 | 5% |
| Hidalgo County, TX | 7,288 | 4% |
| Tattnall County, GA | 6,379 | 4% |
| Toombs County, GA | 3,369 | 2% |
| Franklin County, WA | 3,257 | 2% |
| Luna County, NM | 3,192 | 2% |
| Kern County, CA | 3,141 | 2% |
| Riverside County, CA | 3,008 | 2% |
| Monterey County, CA | 2,153 | 1% |
Onions by the numbers
Each note is calculated from USDA NASS data; the source is listed under it.
How concentrated
The top three states, Washington, California and Oregon, account for 75% of the onions grown in the eight states NASS surveyed.
NASS annual estimates, 2025
How widespread
Farms in 50 states reported onions in the 2022 Census of Agriculture, 8,839 farms in all.
2022 Census of Agriculture
Top county
Imperial County, California has 13% of the acres of onions harvested in the US, the most of any county with a published figure.
2022 Census of Agriculture
Farm value
NASS puts the value of US onions production in 2025 at $1.6 billion.
NASS annual estimates
Census to Census
Acres of onions harvested in the US fell 5% between the 1997 and 2022 Censuses of Agriculture, from 174,579 acres to 166,166 acres.
Censuses of Agriculture, 1997 to 2022
About this data
Dry bulb onions (not green onions).
State and national figures come from NASS's annual estimates (final 2025 figures; in-season forecasts are not used). 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. NASS reports this crop in hundredweight (100 pounds) or 100-pound barrels; we show pounds.
Source: USDA National Agricultural Statistics Service, Quick Stats. Series: ONIONS, DRY - ACRES HARVESTED; ONIONS, DRY - PRODUCTION, MEASURED IN CWT. Data processed 2026-11-06. Methodology.