Counties in California by establishment entry rate
Alpine County had the highest establishment entry rate of 58 counties in 2015, at 17.544%. Trinity County had the lowest, at 6.772%. The median was 10.137% and the figure for California was 11.244%. Source: the U.S. Census Bureau.
Map of counties, 2015
- Under 8.7
- 8.7 to 9.5
- 9.5 to 10
- 10 to 11
- 11 and over
All counties, 2015
Full ranking
| Rank | Counties | 2015 (%) | Change on 2014 |
|---|---|---|---|
| 1 | Alpine County | 17.544 | +17.54 pts |
| 2 | Plumas County | 14.549 | +2.74 pts |
| 3 | Riverside County | 12.322 | +0.23 pts |
| 4 | El Dorado County | 12.151 | +0.36 pts |
| 5 | San Francisco County | 12.018 | -0.04 pts |
| 6 | Los Angeles County | 12.009 | -0.06 pts |
| 7 | San Diego County | 11.791 | -0.3 pts |
| 8 | Tehama County | 11.632 | +1.92 pts |
| 9 | Lassen County | 11.507 | +0.21 pts |
| 10 | Del Norte County | 11.488 | +3.55 pts |
| 11 | Orange County | 11.285 | -0.25 pts |
| 12 | Placer County | 11.212 | -0.09 pts |
| 13 | Santa Clara County | 11.194 | +0.07 pts |
| 14 | Sacramento County | 11.143 | +0.57 pts |
| 15 | San Bernardino County | 11.026 | -0.03 pts |
| 16 | San Mateo County | 10.892 | -0.1 pts |
| 17 | Calaveras County | 10.855 | -0.41 pts |
| 18 | Alameda County | 10.694 | -0.15 pts |
| 19 | Merced County | 10.597 | +1.98 pts |
| 20 | San Luis Obispo County | 10.583 | +0.89 pts |
| 21 | Nevada County | 10.577 | +1.13 pts |
| 21 | Ventura County | 10.577 | +0.16 pts |
| 23 | Yolo County | 10.548 | +0.94 pts |
| 24 | Madera County | 10.497 | -0.11 pts |
| 25 | Contra Costa County | 10.444 | -0.61 pts |
| 26 | Kern County | 10.378 | -0.64 pts |
| 27 | Tuolumne County | 10.361 | +2.34 pts |
| 28 | Marin County | 10.26 | -0.18 pts |
| 29 | San Joaquin County | 10.151 | +0.13 pts |
| 30 | Imperial County | 10.122 | -1.01 pts |
| 31 | Yuba County | 10.047 | -1.75 pts |
| 32 | Santa Cruz County | 10.044 | +0.01 pts |
| 33 | Lake County | 9.871 | -0.73 pts |
| 34 | Sonoma County | 9.756 | -0.94 pts |
| 35 | San Benito County | 9.666 | -1.2 pts |
| 36 | Stanislaus County | 9.653 | +0.23 pts |
| 37 | Tulare County | 9.617 | +0.15 pts |
| 38 | Santa Barbara County | 9.586 | +0.48 pts |
| 39 | Napa County | 9.471 | -0.36 pts |
| 40 | Fresno County | 9.433 | -0.23 pts |
| 41 | Shasta County | 9.423 | +0.53 pts |
| 42 | Butte County | 9.4 | +0.91 pts |
| 43 | Solano County | 9.398 | -1.09 pts |
| 44 | Mono County | 9.14 | +1.04 pts |
| 45 | Sutter County | 9.105 | -0.48 pts |
| 46 | Mariposa County | 9.077 | +1.35 pts |
| 47 | Monterey County | 9.062 | -0.54 pts |
| 48 | Modoc County | 9.059 | +2.87 pts |
| 49 | Mendocino County | 8.341 | -0.22 pts |
| 50 | Humboldt County | 8.329 | +1.27 pts |
| 51 | Sierra County | 8.163 | +0.24 pts |
| 52 | Siskiyou County | 8.025 | +0.33 pts |
| 53 | Amador County | 7.942 | -2.25 pts |
| 54 | Colusa County | 7.941 | +0.66 pts |
| 55 | Inyo County | 7.188 | +1.32 pts |
| 56 | Glenn County | 7.186 | -1.51 pts |
| 57 | Kings County | 7.114 | -3.01 pts |
| 58 | Trinity County | 6.772 | -1.56 pts |
Other periods
About this ranking
Establishments that opened during the year (employees in March of the year and none a year earlier), as a percentage of the average number of establishments in the two years. United States: Census Bureau Business Dynamics Statistics.
An establishment is a single physical location, so a new branch of an existing firm counts as an entry: this is not the rate of new firms. Not comparable with enterprise_birth_rate, which counts new enterprises in Europe. 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. Equal values share a rank.
How to cite
U.S. Census Bureau. Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-12.
Citation styles
APA 7
U.S. Census Bureau. (2025). Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010 (Counties in California by establishment entry rate, 2015) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv
MLA 9
Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010, Counties in California by establishment entry rate, 2015. 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/establishment-entry-rate/california-counties?period=2015. Accessed 12 Oct. 2026.
Chicago (author-date)
U.S. Census Bureau. 2025. Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. Counties in California by establishment entry rate, 2015. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Also distributed by Invokely, https://invokely.ai/rankings/establishment-entry-rate/california-counties?period=2015.
Harvard
U.S. Census Bureau (2025) Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010, Counties in California by establishment entry rate, 2015 [Dataset]. Available at: https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv, via Invokely: https://invokely.ai/rankings/establishment-entry-rate/california-counties?period=2015 (Accessed: 12 October 2026).
BibTeX
@misc{census_counties_in_california_by_2015,
author = {{U.S. Census Bureau}},
title = {{Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010: Counties in California by establishment entry rate, 2015}},
year = {2025},
howpublished = {Data set},
url = {https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv},
urldate = {2026-10-12},
note = {Accessed via Invokely, https://invokely.ai/rankings/establishment-entry-rate/california-counties?period=2015. Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023\_st\_cty.csv. Retrieved 2026-10-12.},
}
RIS
TY - DATA
AU - U.S. Census Bureau
TI - Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010: Counties in California by establishment entry rate, 2015
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/establishment-entry-rate/california-counties?period=2015
Y2 - 2026/10/12
N1 - Accessed via Invokely, https://invokely.ai/rankings/establishment-entry-rate/california-counties?period=2015.
N1 - Publisher attribution: U.S. Census Bureau. Business Dynamics Statistics: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. https://www2.census.gov/programs-surveys/bds/tables/time-series/2023/bds2023_st_cty.csv. Retrieved 2026-10-12.
ER -
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 establishment entry rate using official data, and cite the source.
rank_places {"indicator":"establishment_entry_rate","level":"province","within":"California","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=establishment_entry_rate&level=province&within=California&limit=10
Questions
Which county has the highest establishment entry rate?
Alpine County, with 17.544% in 2015, according to the U.S. Census Bureau.
Which county has the lowest establishment entry rate?
Trinity County, with 6.772% in 2015.
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: establishment entry rate, all covered industries, nation and states from 1978, counties from 2010. Retrieved 2026-10-12.