# Counties in California by employer firm births, 2023

All 58 values come from U.S. Census Bureau for 2023, so the places are comparable.

- Indicator id: `employer_firm_births`
- Unit: count
- Definition: New employer firms: firms of age zero in March of the year, meaning that every establishment of the firm had its first employees during the previous twelve months. United States: Census Bureau Business Dynamics Statistics, which calls these firms startups.
- Source: U.S. Census Bureau, Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978 (https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv)
- Publisher page: https://invokely.ai/en/publishers/us-census-bureau
- Retrieved: 2026-10-22
- Citation: U.S. Census Bureau. Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Retrieved 2026-10-22.
- Web page: https://invokely.ai/rankings/employer-firm-births/california-counties

| Rank | Place | count |
|---:|---|---:|
| 1 | Los Angeles County | 21,714 |
| 2 | Orange County | 7,387 |
| 3 | San Diego County | 6,461 |
| 4 | Riverside County | 3,681 |
| 5 | San Bernardino County | 3,403 |
| 6 | Santa Clara County | 3,032 |
| 7 | Alameda County | 2,705 |
| 8 | Sacramento County | 2,489 |
| 9 | San Francisco County | 2,046 |
| 10 | Contra Costa County | 1,672 |
| 11 | Ventura County | 1,342 |
| 12 | Fresno County | 1,340 |
| 13 | San Mateo County | 1,313 |
| 14 | San Joaquin County | 1,060 |
| 15 | Kern County | 950 |
| 16 | Placer County | 855 |
| 17 | Sonoma County | 801 |
| 18 | Santa Barbara County | 710 |
| 19 | Stanislaus County | 639 |
| 20 | Marin County | 569 |
| 21 | Solano County | 567 |
| 22 | Monterey County | 520 |
| 23 | San Luis Obispo County | 490 |
| 24 | Tulare County | 479 |
| 25 | Santa Cruz County | 428 |
| 26 | El Dorado County | 370 |
| 27 | Yolo County | 265 |
| 28 | Butte County | 252 |
| 29 | Shasta County | 244 |
| 30 | Napa County | 238 |
| 31 | Merced County | 233 |
| 32 | Nevada County | 223 |
| 33 | Sutter County | 191 |
| 34 | Madera County | 186 |
| 35 | Humboldt County | 177 |
| 36 | Imperial County | 141 |
| 37 | Mendocino County | 120 |
| 38 | Kings County | 107 |
| 39 | San Benito County | 102 |
| 40 | Tuolumne County | 85 |
| 41 | Yuba County | 78 |
| 42 | Calaveras County | 76 |
| 43 | Lake County | 63 |
| 44 | Amador County | 58 |
| 45 | Siskiyou County | 57 |
| 46 | Tehama County | 44 |
| 47 | Plumas County | 35 |
| 48 | Mono County | 33 |
| 49 | Del Norte County | 27 |
| 50 | Lassen County | 24 |
| 51 | Glenn County | 23 |
| 52 | Inyo County | 21 |
| 53 | Colusa County | 19 |
| 53 | Mariposa County | 19 |
| 55 | Trinity County | 12 |
| 56 | Modoc County | 11 |
| 57 | Sierra County | 3 |
| 58 | Alpine County | 0 |