Counties in California by employer firms

Los Angeles County had the highest employer firms of 58 counties in 2018, at 197,698. Alpine County had the lowest, at 26. The median was 3,359 and the figure for California was 661,397. Source: the U.S. Census Bureau.

Highest197,698Los Angeles County
Median3,35958 counties
California661,397History

All counties, 2018

Los Angeles County: 197,698 countLos Angeles County197,698Orange County: 72,764 countOrange County72,764San Diego County: 62,311 countSan Diego County62,311Santa Clara County: 35,804 countSanta Clara County35,804Alameda County: 30,447 countAlameda County30,447Riverside County: 29,157 countRiverside County29,157San Bernardino County: 26,615 countSan Bernardino County26,615San Francisco County: 25,694 countSan Francisco County25,694Sacramento County: 21,919 countSacramento County21,919Contra Costa County: 18,029 countContra Costa County18,029San Mateo County: 16,456 countSan Mateo County16,456Ventura County: 16,277 countVentura County16,277Fresno County: 12,852 countFresno County12,852Sonoma County: 11,308 countSonoma County11,308Kern County: 9,656 countKern County9,656Santa Barbara County: 9,317 countSanta Barbara County9,317San Joaquin County: 8,824 countSan Joaquin County8,824Placer County: 8,530 countPlacer County8,530Marin County: 8,005 countMarin County8,005Monterey County: 6,946 countMonterey County6,946Stanislaus County: 6,930 countStanislaus County6,930San Luis Obispo County: 6,751 countSan Luis Obispo County6,751Santa Cruz County: 5,646 countSanta Cruz County5,646Solano County: 5,546 countSolano County5,546Tulare County: 4,989 countTulare County4,989Butte County: 3,788 countButte County3,788El Dorado County: 3,694 countEl Dorado County3,694Napa County: 3,613 countNapa County3,613Shasta County: 3,409 countShasta County3,409Yolo County: 3,308 countYolo County3,308Humboldt County: 2,543 countHumboldt County2,543Nevada County: 2,515 countNevada County2,515Merced County: 2,440 countMerced County2,440Mendocino County: 2,019 countMendocino County2,019Imperial County: 1,951 countImperial County1,951Madera County: 1,615 countMadera County1,615Sutter County: 1,527 countSutter County1,527Kings County: 1,340 countKings County1,340Tuolumne County: 1,096 countTuolumne County1,096Lake County: 924 countLake County924San Benito County: 903 countSan Benito County903Siskiyou County: 828 countSiskiyou County828Tehama County: 800 countTehama County800Calaveras County: 767 countCalaveras County767Amador County: 724 countAmador County724Yuba County: 659 countYuba County659Mono County: 478 countMono County478Plumas County: 448 countPlumas County448Inyo County: 431 countInyo County431Glenn County: 392 countGlenn County392Del Norte County: 339 countDel Norte County339Lassen County: 338 countLassen County338Colusa County: 321 countColusa County321Mariposa County: 275 countMariposa County275Trinity County: 204 countTrinity County204Modoc County: 130 countModoc County130Sierra County: 45 countSierra County45Alpine County: 26 countAlpine County26
count. Source: U.S. Census Bureau, Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties. Retrieved 2026-10-11.

Full ranking

RankCounties2018
count
Change on 2017
1Los Angeles County197,698+1.5%
2Orange County72,764+1.1%
3San Diego County62,311+1.7%
4Santa Clara County35,804+0.1%
5Alameda County30,447+0.7%
6Riverside County29,157+2.7%
7San Bernardino County26,615+2.4%
8San Francisco County25,694-0%
9Sacramento County21,919+2.2%
10Contra Costa County18,029+1.2%
11San Mateo County16,4560%
12Ventura County16,277+0.2%
13Fresno County12,852+1.3%
14Sonoma County11,308+0.3%
15Kern County9,656+1.4%
16Santa Barbara County9,317+1%
17San Joaquin County8,824+1.6%
18Placer County8,530+2.2%
19Marin County8,005+0.1%
20Monterey County6,946+1.6%
21Stanislaus County6,930+1.1%
22San Luis Obispo County6,751+0.9%
23Santa Cruz County5,646-0.4%
24Solano County5,546+2.3%
25Tulare County4,989+1.2%
26Butte County3,788+1.1%
27El Dorado County3,694+2%
28Napa County3,613+1.3%
29Shasta County3,409+0.6%
30Yolo County3,308+0.8%
31Humboldt County2,543+0.4%
32Nevada County2,515+0.6%
33Merced County2,440+1.2%
34Mendocino County2,019-0.4%
35Imperial County1,951+0.3%
36Madera County1,615+0.9%
37Sutter County1,527+5.2%
38Kings County1,340+0.8%
39Tuolumne County1,096+1.3%
40Lake County924-0.2%
41San Benito County903+2.1%
42Siskiyou County828+0.7%
43Tehama County800-0.5%
44Calaveras County767+1.1%
45Amador County724-1.2%
46Yuba County659-2.7%
47Mono County478+2.1%
48Plumas County448+0.4%
49Inyo County431-1.4%
50Glenn County392-0.5%
51Del Norte County339-2.3%
52Lassen County3380%
53Colusa County321+3.5%
54Mariposa County275+1.1%
55Trinity County204-3.8%
56Modoc County130-2.3%
57Sierra County45-8.2%
58Alpine County26+8.3%

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, 2018) [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, 2018. 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?period=2018. 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, 2018. 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?period=2018.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties, Counties in California by employer firms, 2018 [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?period=2018 (Accessed: 11 October 2026).

BibTeX
@misc{census_counties_in_california_by_2018,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics: employer firms, all covered industries, nation, states and counties: Counties in California by employer firms, 2018}},
  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?period=2018. 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, 2018
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?period=2018
Y2  - 2026/10/11
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firms/california-counties?period=2018.
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  - 
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in California by employer firms using official data, and cite the source.
rank_places {"indicator":"employer_firms","level":"province","within":"California","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=employer_firms&level=province&within=California&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest employer firms?

Los Angeles County, with 197,698 in 2018, according to the U.S. Census Bureau.

Which county has the lowest employer firms?

Alpine County, with 26 in 2018.

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