Counties in California by business establishments (QCEW)

Los Angeles County had the highest business establishments (QCEW) of 58 counties in 2016, at 465,340. Alpine County had the lowest, at 90. The median was 6,403 and the figure for California was 1.47 million. Source: the U.S. Bureau of Labor Statistics.

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Highest465,340Los Angeles County
Median6,40358 counties
California1,471,110History

Map of counties, 2016

Alameda County: 60,608 countAlpine County: 90 countAmador County: 1,084 countButte County: 8,152 countCalaveras County: 1,302 countColusa County: 817 countContra Costa County: 31,198 countDel Norte County: 798 countEl Dorado County: 5,194 countFresno County: 33,353 countGlenn County: 1,182 countHumboldt County: 4,950 countImperial County: 7,102 countInyo County: 738 countKern County: 17,852 countKings County: 3,717 countLake County: 3,004 countLassen County: 714 countLos Angeles County: 465,340 countMadera County: 4,063 countMarin County: 12,286 countMariposa County: 479 countMendocino County: 4,131 countMerced County: 6,318 countModoc County: 353 countMono County: 611 countMonterey County: 13,341 countNapa County: 5,719 countNevada County: 3,541 countOrange County: 113,933 countPlacer County: 12,302 countPlumas County: 848 countRiverside County: 59,080 countSacramento County: 55,082 countSan Benito County: 1,575 countSan Bernardino County: 55,306 countSan Diego County: 105,786 countSan Francisco County: 59,263 countSan Joaquin County: 17,254 countSan Luis Obispo County: 10,130 countSan Mateo County: 27,224 countSanta Barbara County: 15,062 countSanta Clara County: 69,708 countSanta Cruz County: 9,403 countShasta County: 6,724 countSierra County: 120 countSiskiyou County: 1,681 countSolano County: 10,868 countSonoma County: 19,449 countStanislaus County: 14,777 countSutter County: 3,089 countTehama County: 1,789 countTrinity County: 400 countTulare County: 9,886 countTuolumne County: 1,575 countVentura County: 25,888 countYolo County: 6,488 countYuba County: 1,602 count
  • Under 1,000
  • 1,000 to 3,000
  • 3,000 to 6,000
  • 6,000 to 12K
  • 12K to 32K
  • 32K and over
count, 2016. Source: BLS, Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2016

Los Angeles County: 465,340 countLos Angeles County465,340Orange County: 113,933 countOrange County113,933San Diego County: 105,786 countSan Diego County105,786Santa Clara County: 69,708 countSanta Clara County69,708Alameda County: 60,608 countAlameda County60,608San Francisco County: 59,263 countSan Francisco County59,263Riverside County: 59,080 countRiverside County59,080San Bernardino County: 55,306 countSan Bernardino County55,306Sacramento County: 55,082 countSacramento County55,082Fresno County: 33,353 countFresno County33,353Contra Costa County: 31,198 countContra Costa County31,198San Mateo County: 27,224 countSan Mateo County27,224Ventura County: 25,888 countVentura County25,888Sonoma County: 19,449 countSonoma County19,449Kern County: 17,852 countKern County17,852San Joaquin County: 17,254 countSan Joaquin County17,254Santa Barbara County: 15,062 countSanta Barbara County15,062Stanislaus County: 14,777 countStanislaus County14,777Monterey County: 13,341 countMonterey County13,341Placer County: 12,302 countPlacer County12,302Marin County: 12,286 countMarin County12,286Solano County: 10,868 countSolano County10,868San Luis Obispo County: 10,130 countSan Luis Obispo County10,130Tulare County: 9,886 countTulare County9,886Santa Cruz County: 9,403 countSanta Cruz County9,403Butte County: 8,152 countButte County8,152Imperial County: 7,102 countImperial County7,102Shasta County: 6,724 countShasta County6,724Yolo County: 6,488 countYolo County6,488Merced County: 6,318 countMerced County6,318Napa County: 5,719 countNapa County5,719El Dorado County: 5,194 countEl Dorado County5,194Humboldt County: 4,950 countHumboldt County4,950Mendocino County: 4,131 countMendocino County4,131Madera County: 4,063 countMadera County4,063Kings County: 3,717 countKings County3,717Nevada County: 3,541 countNevada County3,541Sutter County: 3,089 countSutter County3,089Lake County: 3,004 countLake County3,004Tehama County: 1,789 countTehama County1,789Siskiyou County: 1,681 countSiskiyou County1,681Yuba County: 1,602 countYuba County1,602San Benito County: 1,575 countSan Benito County1,575Tuolumne County: 1,575 countTuolumne County1,575Calaveras County: 1,302 countCalaveras County1,302Glenn County: 1,182 countGlenn County1,182Amador County: 1,084 countAmador County1,084Plumas County: 848 countPlumas County848Colusa County: 817 countColusa County817Del Norte County: 798 countDel Norte County798Inyo County: 738 countInyo County738Lassen County: 714 countLassen County714Mono County: 611 countMono County611Mariposa County: 479 countMariposa County479Trinity County: 400 countTrinity County400Modoc County: 353 countModoc County353Sierra County: 120 countSierra County120Alpine County: 90 countAlpine County90Los Angeles County: 465,340 countLos Angeles County465,340Orange County: 113,933 countOrange County113,933San Diego County: 105,786 countSan Diego County105,786Santa Clara County: 69,708 countSanta Clara County69,708Alameda County: 60,608 countAlameda County60,608San Francisco County: 59,263 countSan Francisco County59,263Riverside County: 59,080 countRiverside County59,080San Bernardino County: 55,306 countSan Bernardino County55,306Sacramento County: 55,082 countSacramento County55,082Fresno County: 33,353 countFresno County33,353Contra Costa County: 31,198 countContra Costa County31,198San Mateo County: 27,224 countSan Mateo County27,224Ventura County: 25,888 countVentura County25,888Sonoma County: 19,449 countSonoma County19,449Kern County: 17,852 countKern County17,852San Joaquin County: 17,254 countSan Joaquin County17,254Santa Barbara County: 15,062 countSanta Barbara County15,062Stanislaus County: 14,777 countStanislaus County14,777Monterey County: 13,341 countMonterey County13,341Placer County: 12,302 countPlacer County12,302Marin County: 12,286 countMarin County12,286Solano County: 10,868 countSolano County10,868San Luis Obispo County: 10,130 countSan Luis Obispo County10,130Tulare County: 9,886 countTulare County9,886Santa Cruz County: 9,403 countSanta Cruz County9,403Butte County: 8,152 countButte County8,152Imperial County: 7,102 countImperial County7,102Shasta County: 6,724 countShasta County6,724Yolo County: 6,488 countYolo County6,488Merced County: 6,318 countMerced County6,318Napa County: 5,719 countNapa County5,719El Dorado County: 5,194 countEl Dorado County5,194Humboldt County: 4,950 countHumboldt County4,950Mendocino County: 4,131 countMendocino County4,131Madera County: 4,063 countMadera County4,063Kings County: 3,717 countKings County3,717Nevada County: 3,541 countNevada County3,541Sutter County: 3,089 countSutter County3,089Lake County: 3,004 countLake County3,004Tehama County: 1,789 countTehama County1,789Siskiyou County: 1,681 countSiskiyou County1,681Yuba County: 1,602 countYuba County1,602San Benito County: 1,575 countSan Benito County1,575Tuolumne County: 1,575 countTuolumne County1,575Calaveras County: 1,302 countCalaveras County1,302Glenn County: 1,182 countGlenn County1,182Amador County: 1,084 countAmador County1,084Plumas County: 848 countPlumas County848Colusa County: 817 countColusa County817Del Norte County: 798 countDel Norte County798Inyo County: 738 countInyo County738Lassen County: 714 countLassen County714Mono County: 611 countMono County611Mariposa County: 479 countMariposa County479Trinity County: 400 countTrinity County400Modoc County: 353 countModoc County353Sierra County: 120 countSierra County120Alpine County: 90 countAlpine County90
count. Source: BLS, Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2016
count
Change on 2015
1Los Angeles County465,340+3%
2Orange County113,933+3.1%
3San Diego County105,786+2.8%
4Santa Clara County69,708+3.3%
5Alameda County60,608+3.1%
6San Francisco County59,263+1.4%
7Riverside County59,080+5.8%
8San Bernardino County55,306+4.2%
9Sacramento County55,082+2.6%
10Fresno County33,353+4%
11Contra Costa County31,198+2.6%
12San Mateo County27,224+2.1%
13Ventura County25,888+2.8%
14Sonoma County19,449+2%
15Kern County17,852+2.5%
16San Joaquin County17,254+1.9%
17Santa Barbara County15,062+2.1%
18Stanislaus County14,777+1.1%
19Monterey County13,341+2.4%
20Placer County12,302+4.6%
21Marin County12,286+1.5%
22Solano County10,868+3.8%
23San Luis Obispo County10,130+1.9%
24Tulare County9,886+5%
25Santa Cruz County9,403+1.4%
26Butte County8,152+3.3%
27Imperial County7,102+3.2%
28Shasta County6,724+1.3%
29Yolo County6,488+3.1%
30Merced County6,318+4.1%
31Napa County5,719+1.8%
32El Dorado County5,194+4.1%
33Humboldt County4,950+2.9%
34Mendocino County4,131+0.4%
35Madera County4,063+2.1%
36Kings County3,717+3.9%
37Nevada County3,541+2%
38Sutter County3,089+3.1%
39Lake County3,004+3.4%
40Tehama County1,789+2.1%
41Siskiyou County1,681+3.7%
42Yuba County1,602+2.3%
43San Benito County1,575+3.3%
43Tuolumne County1,575+0.3%
45Calaveras County1,302+3.3%
46Glenn County1,182+0.9%
47Amador County1,084+2.2%
48Plumas County848+2.2%
49Colusa County817+2.6%
50Del Norte County798+0.5%
51Inyo County738-0.4%
52Lassen County714-1.2%
53Mono County611-0.5%
54Mariposa County479+1.7%
55Trinity County400+3.1%
56Modoc County353-0.3%
57Sierra County120+4.3%
58Alpine County90-3.2%

Other periods

About this ranking

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.

Counts places of business, not firms: for firms use employer_firms. Changes in how large employers report their locations can move the count without any change in activity.

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. 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/2016/a/industry/10.csv. Retrieved 2026-10-12.

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. Bureau of Labor Statistics. (2026). Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties (Counties in California by business establishments (QCEW), 2016) [Data set]. Retrieved October 12, 2026, from https://data.bls.gov/cew/data/api/2016/a/industry/10.csv

MLA 9

Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties, Counties in California by business establishments (QCEW), 2016. U.S. Bureau of Labor Statistics, 21 Aug. 2026, https://data.bls.gov/cew/data/api/2016/a/industry/10.csv. Invokely, https://invokely.ai/rankings/business-establishments/california-counties?period=2016. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Bureau of Labor Statistics. 2026. Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties. Counties in California by business establishments (QCEW), 2016. Dataset. Accessed October 12, 2026. https://data.bls.gov/cew/data/api/2016/a/industry/10.csv. Also distributed by Invokely, https://invokely.ai/rankings/business-establishments/california-counties?period=2016.

Harvard

U.S. Bureau of Labor Statistics (2026) Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties, Counties in California by business establishments (QCEW), 2016 [Dataset]. Available at: https://data.bls.gov/cew/data/api/2016/a/industry/10.csv, via Invokely: https://invokely.ai/rankings/business-establishments/california-counties?period=2016 (Accessed: 12 October 2026).

BibTeX
@misc{bureau_counties_in_california_by_2016,
  author = {{U.S. Bureau of Labor Statistics}},
  title = {{Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties: Counties in California by business establishments (QCEW), 2016}},
  year = {2026},
  howpublished = {Data set},
  url = {https://data.bls.gov/cew/data/api/2016/a/industry/10.csv},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/business-establishments/california-counties?period=2016. Publisher attribution: 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/2016/a/industry/10.csv. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Bureau of Labor Statistics
TI  - Quarterly Census of Employment and Wages (QCEW): annual average establishments, total covered, all industries (NAICS 10), nation, states and counties: Counties in California by business establishments (QCEW), 2016
PY  - 2026
DA  - 2026/08/21
PB  - U.S. Bureau of Labor Statistics
DB  - Invokely
UR  - https://data.bls.gov/cew/data/api/2016/a/industry/10.csv
L2  - https://invokely.ai/rankings/business-establishments/california-counties?period=2016
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/business-establishments/california-counties?period=2016.
N1  - Publisher attribution: 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/2016/a/industry/10.csv. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest business establishments (QCEW)?

Los Angeles County, with 465,340 in 2016, according to the U.S. Bureau of Labor Statistics.

Which county has the lowest business establishments (QCEW)?

Alpine County, with 90 in 2016.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: 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. Retrieved 2026-10-12.

Business establishments (QCEW): other rankings

Counties in California: more rankings