Counties in California by employer firms, 2023

Los Angeles County had the highest employer firms of 58 counties in 2023, at 220,105. Alpine County had the lowest, at 28. The median was 3,617 and the figure for California was 725,847. Source: the U.S. Census Bureau.

Highest220,105Los Angeles County
Median3,61758 counties
California725,847History

All counties, 2023

Los Angeles County: 220,105 countLos Angeles County220,105Orange County: 80,628 countOrange County80,628San Diego County: 68,886 countSan Diego County68,886Santa Clara County: 36,608 countSanta Clara County36,608Riverside County: 34,083 countRiverside County34,083Alameda County: 32,199 countAlameda County32,199San Bernardino County: 31,388 countSan Bernardino County31,388San Francisco County: 25,746 countSan Francisco County25,746Sacramento County: 25,118 countSacramento County25,118Contra Costa County: 19,485 countContra Costa County19,485Ventura County: 17,396 countVentura County17,396San Mateo County: 16,766 countSan Mateo County16,766Fresno County: 14,573 countFresno County14,573Sonoma County: 11,530 countSonoma County11,530Kern County: 10,702 countKern County10,702San Joaquin County: 10,265 countSan Joaquin County10,265Santa Barbara County: 9,787 countSanta Barbara County9,787Placer County: 9,504 countPlacer County9,504Marin County: 8,001 countMarin County8,001Stanislaus County: 7,606 countStanislaus County7,606Monterey County: 7,222 countMonterey County7,222San Luis Obispo County: 7,081 countSan Luis Obispo County7,081Solano County: 6,011 countSolano County6,011Santa Cruz County: 5,828 countSanta Cruz County5,828Tulare County: 5,454 countTulare County5,454El Dorado County: 3,974 countEl Dorado County3,974Napa County: 3,761 countNapa County3,761Butte County: 3,735 countButte County3,735Shasta County: 3,633 countShasta County3,633Yolo County: 3,600 countYolo County3,600Merced County: 2,767 countMerced County2,767Nevada County: 2,711 countNevada County2,711Humboldt County: 2,541 countHumboldt County2,541Imperial County: 2,089 countImperial County2,089Mendocino County: 1,970 countMendocino County1,970Madera County: 1,919 countMadera County1,919Sutter County: 1,864 countSutter County1,864Kings County: 1,487 countKings County1,487Tuolumne County: 1,083 countTuolumne County1,083San Benito County: 1,008 countSan Benito County1,008Lake County: 883 countLake County883Siskiyou County: 837 countSiskiyou County837Calaveras County: 801 countCalaveras County801Tehama County: 801 countTehama County801Yuba County: 737 countYuba County737Amador County: 732 countAmador County732Mono County: 484 countMono County484Plumas County: 460 countPlumas County460Glenn County: 432 countGlenn County432Inyo County: 425 countInyo County425Del Norte County: 355 countDel Norte County355Colusa County: 335 countColusa County335Lassen County: 317 countLassen County317Mariposa County: 303 countMariposa County303Trinity County: 188 countTrinity County188Modoc County: 141 countModoc County141Sierra County: 54 countSierra County54Alpine County: 28 countAlpine County28
count. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Full ranking

RankCounties2023
count
Change on 2022
1Los Angeles County220,105+1.2%
2Orange County80,628+0.9%
3San Diego County68,886+1.2%
4Santa Clara County36,608+0.4%
5Riverside County34,083+1.9%
6Alameda County32,199+1%
7San Bernardino County31,388+2%
8San Francisco County25,746+0.1%
9Sacramento County25,118+2.2%
10Contra Costa County19,485+1.4%
11Ventura County17,396+0.4%
12San Mateo County16,766+0.5%
13Fresno County14,573+1.8%
14Sonoma County11,530-0.5%
15Kern County10,702+0.9%
16San Joaquin County10,265+2.9%
17Santa Barbara County9,787+0.9%
18Placer County9,504+1.3%
19Marin County8,001-0.5%
20Stanislaus County7,606+1.2%
21Monterey County7,222+1.3%
22San Luis Obispo County7,081-0.2%
23Solano County6,011+2.1%
24Santa Cruz County5,828-0.1%
25Tulare County5,454+2.3%
26El Dorado County3,974+0.1%
27Napa County3,761+1%
28Butte County3,735+1%
29Shasta County3,633-0.8%
30Yolo County3,600+0.8%
31Merced County2,767+2.1%
32Nevada County2,711+0.4%
33Humboldt County2,541-0.3%
34Imperial County2,089+0.2%
35Mendocino County1,970-2.2%
36Madera County1,919+3.3%
37Sutter County1,864+4.8%
38Kings County1,487+1.2%
39Tuolumne County1,083+0.2%
40San Benito County1,008+5.1%
41Lake County883-1.9%
42Siskiyou County837+0.7%
43Calaveras County801-1.2%
43Tehama County801-5%
45Yuba County737+3.7%
46Amador County732+0.4%
47Mono County484-4.9%
48Plumas County460-0.9%
49Glenn County432+2.1%
50Inyo County425-0.5%
51Del Norte County355+1.4%
52Colusa County335+1.5%
53Lassen County317-1.9%
54Mariposa County303-0.3%
55Trinity County188-10.5%
56Modoc County141+2.2%
57Sierra County540%
58Alpine County28-3.4%

Other periods

About this ranking

Number of firms in the private nonfarm sectors covered by the US Census Bureau Business Dynamics Statistics. Establishments under common ownership form one firm.

Excludes nonemployer businesses. Differs from active_companies, the INE DIRCE count, which includes businesses without employees.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-11.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2025). Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties (Counties in California by employer firms, 2023) [Data set]. Retrieved October 11, 2026, from https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv

MLA 9

Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in California by employer firms, 2023. U.S. Census Bureau, 25 Sept. 2025, https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Invokely, https://invokely.ai/rankings/employer-firms/california-counties. Accessed 11 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2025. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Counties in California by employer firms, 2023. Dataset. Accessed October 11, 2026. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Also distributed by Invokely, https://invokely.ai/rankings/employer-firms/california-counties.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in California by employer firms, 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv, via Invokely: https://invokely.ai/rankings/employer-firms/california-counties (Accessed: 11 October 2026).

BibTeX
@misc{census_counties_in_california_by_2023,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in California by employer firms, 2023}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv},
  urldate = {2026-10-11},
  note = {Accessed via Invokely, https://invokely.ai/rankings/employer-firms/california-counties. Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023\_st\_cty.csv. Retrieved 2026-10-11.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in California by employer firms, 2023
PY  - 2025
DA  - 2025/09/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv
L2  - https://invokely.ai/rankings/employer-firms/california-counties
Y2  - 2026/10/11
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firms/california-counties.
N1  - Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-11.
ER  - 
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Questions

Which county has the highest employer firms?

Los Angeles County, with 220,105 in 2023, according to the U.S. Census Bureau.

Which county has the lowest employer firms?

Alpine County, with 28 in 2023.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Employer firms: other rankings

Counties in California: more rankings