Counties in California by employer firm births

Los Angeles County had the highest employer firm births of 57 counties in 2016, at 19,185. Sierra County had the lowest, at 5. The median was 239 and the figure for California was 60,802. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest19,185Los Angeles County
Median23957 counties
California60,802History

Map of counties, 2016

Alameda County: 2,583 countAmador County: 48 countButte County: 250 countCalaveras County: 55 countColusa County: 23 countContra Costa County: 1,526 countDel Norte County: 18 countEl Dorado County: 315 countFresno County: 919 countGlenn County: 17 countHumboldt County: 143 countImperial County: 140 countInyo County: 16 countKern County: 700 countKings County: 69 countLake County: 68 countLassen County: 11 countLos Angeles County: 19,185 countMadera County: 113 countMarin County: 568 countMariposa County: 17 countMendocino County: 121 countMerced County: 172 countModoc County: 5 countMono County: 28 countMonterey County: 447 countNapa County: 239 countNevada County: 166 countOrange County: 6,668 countPlacer County: 723 countPlumas County: 20 countRiverside County: 2,684 countSacramento County: 1,779 countSan Benito County: 56 countSan Bernardino County: 2,269 countSan Diego County: 5,688 countSan Francisco County: 2,310 countSan Joaquin County: 630 countSan Luis Obispo County: 477 countSan Mateo County: 1,389 countSanta Barbara County: 653 countSanta Clara County: 3,258 countSanta Cruz County: 365 countShasta County: 203 countSierra County: 5 countSiskiyou County: 53 countSolano County: 364 countSonoma County: 801 countStanislaus County: 518 countSutter County: 91 countTehama County: 46 countTrinity County: 14 countTulare County: 321 countTuolumne County: 59 countVentura County: 1,228 countYolo County: 247 countYuba County: 42 count
  • Under 100
  • 100 to 200
  • 200 to 500
  • 500 to 1,500
  • 1,500 and over
  • No data
count, 2016. Hatched areas have no value for this period. 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. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2016

Los Angeles County: 19,185 countLos Angeles County19,185Orange County: 6,668 countOrange County6,668San Diego County: 5,688 countSan Diego County5,688Santa Clara County: 3,258 countSanta Clara County3,258Riverside County: 2,684 countRiverside County2,684Alameda County: 2,583 countAlameda County2,583San Francisco County: 2,310 countSan Francisco County2,310San Bernardino County: 2,269 countSan Bernardino County2,269Sacramento County: 1,779 countSacramento County1,779Contra Costa County: 1,526 countContra Costa County1,526San Mateo County: 1,389 countSan Mateo County1,389Ventura County: 1,228 countVentura County1,228Fresno County: 919 countFresno County919Sonoma County: 801 countSonoma County801Placer County: 723 countPlacer County723Kern County: 700 countKern County700Santa Barbara County: 653 countSanta Barbara County653San Joaquin County: 630 countSan Joaquin County630Marin County: 568 countMarin County568Stanislaus County: 518 countStanislaus County518San Luis Obispo County: 477 countSan Luis Obispo County477Monterey County: 447 countMonterey County447Santa Cruz County: 365 countSanta Cruz County365Solano County: 364 countSolano County364Tulare County: 321 countTulare County321El Dorado County: 315 countEl Dorado County315Butte County: 250 countButte County250Yolo County: 247 countYolo County247Napa County: 239 countNapa County239Shasta County: 203 countShasta County203Merced County: 172 countMerced County172Nevada County: 166 countNevada County166Humboldt County: 143 countHumboldt County143Imperial County: 140 countImperial County140Mendocino County: 121 countMendocino County121Madera County: 113 countMadera County113Sutter County: 91 countSutter County91Kings County: 69 countKings County69Lake County: 68 countLake County68Tuolumne County: 59 countTuolumne County59San Benito County: 56 countSan Benito County56Calaveras County: 55 countCalaveras County55Siskiyou County: 53 countSiskiyou County53Amador County: 48 countAmador County48Tehama County: 46 countTehama County46Yuba County: 42 countYuba County42Mono County: 28 countMono County28Colusa County: 23 countColusa County23Plumas County: 20 countPlumas County20Del Norte County: 18 countDel Norte County18Glenn County: 17 countGlenn County17Mariposa County: 17 countMariposa County17Inyo County: 16 countInyo County16Trinity County: 14 countTrinity County14Lassen County: 11 countLassen County11Modoc County: 5 countModoc County5Sierra County: 5 countSierra County5Los Angeles County: 19,185 countLos Angeles County19,185Orange County: 6,668 countOrange County6,668San Diego County: 5,688 countSan Diego County5,688Santa Clara County: 3,258 countSanta Clara County3,258Riverside County: 2,684 countRiverside County2,684Alameda County: 2,583 countAlameda County2,583San Francisco County: 2,310 countSan Francisco County2,310San Bernardino County: 2,269 countSan Bernardino County2,269Sacramento County: 1,779 countSacramento County1,779Contra Costa County: 1,526 countContra Costa County1,526San Mateo County: 1,389 countSan Mateo County1,389Ventura County: 1,228 countVentura County1,228Fresno County: 919 countFresno County919Sonoma County: 801 countSonoma County801Placer County: 723 countPlacer County723Kern County: 700 countKern County700Santa Barbara County: 653 countSanta Barbara County653San Joaquin County: 630 countSan Joaquin County630Marin County: 568 countMarin County568Stanislaus County: 518 countStanislaus County518San Luis Obispo County: 477 countSan Luis Obispo County477Monterey County: 447 countMonterey County447Santa Cruz County: 365 countSanta Cruz County365Solano County: 364 countSolano County364Tulare County: 321 countTulare County321El Dorado County: 315 countEl Dorado County315Butte County: 250 countButte County250Yolo County: 247 countYolo County247Napa County: 239 countNapa County239Shasta County: 203 countShasta County203Merced County: 172 countMerced County172Nevada County: 166 countNevada County166Humboldt County: 143 countHumboldt County143Imperial County: 140 countImperial County140Mendocino County: 121 countMendocino County121Madera County: 113 countMadera County113Sutter County: 91 countSutter County91Kings County: 69 countKings County69Lake County: 68 countLake County68Tuolumne County: 59 countTuolumne County59San Benito County: 56 countSan Benito County56Calaveras County: 55 countCalaveras County55Siskiyou County: 53 countSiskiyou County53Amador County: 48 countAmador County48Tehama County: 46 countTehama County46Yuba County: 42 countYuba County42Mono County: 28 countMono County28Colusa County: 23 countColusa County23Plumas County: 20 countPlumas County20Del Norte County: 18 countDel Norte County18Glenn County: 17 countGlenn County17Mariposa County: 17 countMariposa County17Inyo County: 16 countInyo County16Trinity County: 14 countTrinity County14Lassen County: 11 countLassen County11Modoc County: 5 countModoc County5Sierra County: 5 countSierra County5
count. 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. Retrieved 2026-10-22.

Full ranking

RankCounties2016
count
Change on 2015
1Los Angeles County19,185+6.1%
2Orange County6,668+7.2%
3San Diego County5,688+2.8%
4Santa Clara County3,258+6.5%
5Riverside County2,684+2.4%
6Alameda County2,583+7.3%
7San Francisco County2,310-0.8%
8San Bernardino County2,269+4.2%
9Sacramento County1,779+1.9%
10Contra Costa County1,526+14.9%
11San Mateo County1,389+1.2%
12Ventura County1,228+1.8%
13Fresno County919+8.1%
14Sonoma County801+1.9%
15Placer County723+14.8%
16Kern County700-2.4%
17Santa Barbara County653+10.3%
18San Joaquin County630+3.4%
19Marin County568+4.2%
20Stanislaus County518+11.9%
21San Luis Obispo County477-5.9%
22Monterey County447+9.6%
23Santa Cruz County365-5.2%
24Solano County364+4.9%
25Tulare County321-3%
26El Dorado County315+3.3%
27Butte County250+6.8%
28Yolo County247+10.8%
29Napa County239+1.7%
30Shasta County203-2.4%
31Merced County172-1.7%
32Nevada County166+9.9%
33Humboldt County143+6.7%
34Imperial County140+5.3%
35Mendocino County121+5.2%
36Madera County113+3.7%
37Sutter County91-1.1%
38Kings County69+30.2%
39Lake County68+15.3%
40Tuolumne County59-15.7%
41San Benito County56-12.5%
42Calaveras County55+14.6%
43Siskiyou County53+32.5%
44Amador County48+26.3%
45Tehama County46-23.3%
46Yuba County42+7.7%
47Mono County28+16.7%
48Colusa County23+43.8%
49Plumas County20-37.5%
50Del Norte County18-10%
51Glenn County17+6.3%
51Mariposa County17+21.4%
53Inyo County16+6.7%
54Trinity County14+40%
55Lassen County11-26.7%
56Modoc County5-37.5%
56Sierra County5n/a

Other periods

About this ranking

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.

A firm counts only when it has employees, so a business without staff is not a birth, and a new branch, merger or change of ownership of an existing firm is not a birth either. Not the same as business_applications (requests for an employer number) or enterprise_births (European business demography). The year is the twelve months to March: 2023 compares March 2022 with March 2023.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. 1 counties with data in other periods have no value for 2016 and are left out rather than filled from another source. Equal values share a rank.

How to cite

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.

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 by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978 (Counties in California by employer firm births, 2016) [Data set]. Retrieved October 22, 2026, from https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv

MLA 9

Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978, Counties in California by employer firm births, 2016. U.S. Census Bureau, 25 Sept. 2025, https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Invokely, https://invokely.ai/rankings/employer-firm-births/california-counties?period=2016. Accessed 22 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2025. Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Counties in California by employer firm births, 2016. Dataset. Accessed October 22, 2026. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv. Also distributed by Invokely, https://invokely.ai/rankings/employer-firm-births/california-counties?period=2016.

Harvard

U.S. Census Bureau (2025) Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978, Counties in California by employer firm births, 2016 [Dataset]. Available at: https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv, via Invokely: https://invokely.ai/rankings/employer-firm-births/california-counties?period=2016 (Accessed: 22 October 2026).

BibTeX
@misc{census_counties_in_california_by_2016,
  author = {{U.S. Census Bureau}},
  title = {{Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978: Counties in California by employer firm births, 2016}},
  year = {2025},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty_fac.csv},
  urldate = {2026-10-22},
  note = {Accessed via Invokely, https://invokely.ai/rankings/employer-firm-births/california-counties?period=2016. Publisher attribution: 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.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Business Dynamics Statistics by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978: Counties in California by employer firm births, 2016
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_fac.csv
L2  - https://invokely.ai/rankings/employer-firm-births/california-counties?period=2016
Y2  - 2026/10/22
N1  - Accessed via Invokely, https://invokely.ai/rankings/employer-firm-births/california-counties?period=2016.
N1  - Publisher attribution: 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.
ER  - 
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Rank Counties in California by employer firm births using official data, and cite the source.
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Questions

Which county has the highest employer firm births?

Los Angeles County, with 19,185 in 2016, according to the U.S. Census Bureau.

Which county has the lowest employer firm births?

Sierra County, with 5 in 2016.

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 by firm age: employer firms of age zero, all covered industries, nation, states and counties from 1978. Retrieved 2026-10-22. 1 counties have no value for 2016 and are not ranked.

Employer firm births: other rankings

Counties in California: more rankings