# Counties in California by business establishments (QCEW), 2025

All 58 values come from U.S. Bureau of Labor Statistics for 2025, so the places are comparable.

- Indicator id: `establishments_qcew`
- Unit: count
- Definition: Average number of establishments with jobs covered by unemployment insurance during the year, all industries, private and government, from the Quarterly Census of Employment and Wages (QCEW) of the U.S. Bureau of Labor Statistics. An establishment is a single place of business, such as a factory, store or office; a company with several locations has several.
- Source: U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties (https://data.bls.gov/cew/data/api/2025/a/industry/10.csv)
- Publisher page: https://invokely.ai/en/publishers/bureau-of-labor-statistics
- Retrieved: 2026-10-12
- Citation: U.S. Bureau of Labor Statistics. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. https://data.bls.gov/cew/data/api/2025/a/industry/10.csv. Retrieved 2026-10-12.
- Web page: https://invokely.ai/rankings/business-establishments/california-counties

| Rank | Place | count |
|---:|---|---:|
| 1 | Los Angeles County | 577,270 |
| 2 | Orange County | 152,412 |
| 3 | San Diego County | 135,234 |
| 4 | Riverside County | 89,490 |
| 5 | Santa Clara County | 84,447 |
| 6 | San Bernardino County | 79,726 |
| 7 | Sacramento County | 74,825 |
| 8 | Alameda County | 74,091 |
| 9 | San Francisco County | 66,917 |
| 10 | Fresno County | 44,722 |
| 11 | Contra Costa County | 40,422 |
| 12 | Ventura County | 32,046 |
| 13 | San Mateo County | 31,709 |
| 14 | Kern County | 28,956 |
| 15 | San Joaquin County | 22,784 |
| 16 | Sonoma County | 21,801 |
| 17 | Stanislaus County | 17,989 |
| 18 | Santa Barbara County | 17,730 |
| 19 | Placer County | 16,235 |
| 20 | Monterey County | 15,910 |
| 21 | Tulare County | 14,922 |
| 22 | Solano County | 13,974 |
| 23 | Marin County | 13,036 |
| 24 | San Luis Obispo County | 11,809 |
| 25 | Santa Cruz County | 10,268 |
| 26 | Imperial County | 9,940 |
| 27 | Butte County | 8,995 |
| 28 | Merced County | 8,686 |
| 29 | Shasta County | 8,580 |
| 30 | Yolo County | 8,093 |
| 31 | Humboldt County | 7,360 |
| 32 | El Dorado County | 6,658 |
| 33 | Napa County | 6,653 |
| 34 | Madera County | 5,798 |
| 35 | Kings County | 5,449 |
| 36 | Nevada County | 4,522 |
| 37 | Mendocino County | 4,511 |
| 38 | Sutter County | 4,262 |
| 39 | Lake County | 3,739 |
| 40 | Tehama County | 2,398 |
| 41 | Yuba County | 2,130 |
| 42 | San Benito County | 2,020 |
| 43 | Tuolumne County | 1,879 |
| 44 | Siskiyou County | 1,720 |
| 45 | Calaveras County | 1,467 |
| 46 | Amador County | 1,362 |
| 47 | Glenn County | 1,321 |
| 48 | Colusa County | 1,053 |
| 49 | Plumas County | 948 |
| 50 | Del Norte County | 862 |
| 51 | Inyo County | 836 |
| 52 | Mono County | 727 |
| 53 | Lassen County | 717 |
| 54 | Mariposa County | 645 |
| 55 | Trinity County | 434 |
| 56 | Modoc County | 398 |
| 57 | Sierra County | 135 |
| 58 | Alpine County | 91 |