In 2021, the IRS received a whopping 5.4 million business applications—an all-time high since the U.S. government began tracking this data in 2004. The year with the second-highest number of new business applications? 2020. Today, small businesses employ nearly half of the nation’s workers, according to a Chamber of Commerce report.

It’s fair to say that the past few years have been banner years for small businesses, but what about regional differences? The business climate in a small town in Texas is likely not the same as a small town in Connecticut. The Chamber of Commerce report found that the Midwest was the most business-friendly region, thanks to the relatively low cost of living, well-educated workforce, and regulations lowering taxes and easing zoning restrictions for businesses.

Of course, the East and West coasts also have plenty to offer, from California’s Silicon Valley and Hollywood studios to New York’s financial hub to Massachusetts’ prominence in the aerospace, defense, and information technology industries. A few states—including Delaware, Wyoming, and Nevada—even allow you to incorporate your business within their borders without ever setting foot there.

For even more specific data, let’s take it a step further by analyzing counties. Are certain counties more friendly to small businesses than others? To pinpoint the areas where small businesses abound, altLINE used Census Bureau data to find the counties in California with the highest concentration of small businesses in 2021, calculated as small establishments per 1,000 residents. Small establishments are defined as those with fewer than 500 employees. Counties with fewer than 1,000 residents were excluded from the analysis, as well as counties for which the Census Bureau didn’t have population estimates.

Another important factor to consider: States where nonresidents are allowed to incorporate businesses will also have a higher ratio of small businesses to residents since not all small businesses are actually operated by people living in that state.

Taking a close look at the type of counties that topped the list in each state also reveals some interesting trends. World-class vacation destinations are well represented on the lists of each state, perhaps because tourists are looking to get a sense of how the locals live through small businesses like restaurants, bakeries, bars, and boutiques.

While the top counties in each state do include a few major cities, less populated counties with smaller towns are much more common. Although most of the nation’s small businesses are located in major metropolitan areas, those that are located in rural areas tend to be more stable—possibly due to loyalty from local residents or the absence of competition from large corporations.

Keep reading to discover the counties in California with the highest concentration of small businesses, and see how it compares across 50 states. It just might give you inspiration for your next endeavor.

This story features data reporting by Paxtyn Merten, writing by Annalise Mantz, and is part of a series utilizing data automation across 50 states.

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#58. Yuba County

– Total small business establishments: 833 (10.0 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 83,216

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#57. Kings County

– Total small business establishments: 1,720 (11.3 per 1,000 residents)
– Share of establishments that are small: 99.7%
– 2021 population: 152,679

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#56. Merced County

– Total small business establishments: 3,335 (11.7 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 284,458

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#55. Lassen County

– Total small business establishments: 397 (12.5 per 1,000 residents)
– Share of establishments that are small: 100.0%
– 2021 population: 31,813

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#54. Madera County

– Total small business establishments: 2,158 (13.6 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 158,910

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#53. Tulare County

– Total small business establishments: 6,755 (14.2 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 476,946

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#52. Imperial County

– Total small business establishments: 2,580 (14.4 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 179,215

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#51. Del Norte County

– Total small business establishments: 408 (14.8 per 1,000 residents)
– Share of establishments that are small: 99.5%
– 2021 population: 27,553

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#50. Kern County

– Total small business establishments: 13,706 (15.0 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 912,351

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#49. Tehama County

– Total small business establishments: 1,008 (15.4 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 65,380

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#48. San Benito County

– Total small business establishments: 1,044 (15.7 per 1,000 residents)
– Share of establishments that are small: 99.7%
– 2021 population: 66,675

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#47. Trinity County

– Total small business establishments: 252 (15.7 per 1,000 residents)
– Share of establishments that are small: 98.8%
– 2021 population: 16,061

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#46. Lake County

– Total small business establishments: 1,092 (15.9 per 1,000 residents)
– Share of establishments that are small: 100.0%
– 2021 population: 68,584

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#45. San Joaquin County

– Total small business establishments: 12,674 (16.1 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 788,140

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#44. Solano County

– Total small business establishments: 7,411 (16.5 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 450,350

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#43. Glenn County

– Total small business establishments: 485 (16.9 per 1,000 residents)
– Share of establishments that are small: 99.6%
– 2021 population: 28,664

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#42. Stanislaus County

– Total small business establishments: 9,594 (17.4 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 552,851

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#41. Riverside County

– Total small business establishments: 43,213 (17.6 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 2,453,178

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#40. Colusa County

– Total small business establishments: 392 (17.9 per 1,000 residents)
– Share of establishments that are small: 99.5%
– 2021 population: 21,913

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#39. Fresno County

– Total small business establishments: 18,159 (17.9 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 1,012,992

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#38. Modoc County

– Total small business establishments: 155 (18.1 per 1,000 residents)
– Share of establishments that are small: 98.7%
– 2021 population: 8,571

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#37. San Bernardino County

– Total small business establishments: 39,711 (18.1 per 1,000 residents)
– Share of establishments that are small: 99.7%
– 2021 population: 2,192,882

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#36. Mariposa County

– Total small business establishments: 318 (18.6 per 1,000 residents)
– Share of establishments that are small: 99.4%
– 2021 population: 17,107

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#35. Amador County

– Total small business establishments: 816 (19.8 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 41,144

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#34. Sacramento County

– Total small business establishments: 32,131 (20.2 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 1,588,106

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#33. Monterey County

– Total small business establishments: 8,937 (20.4 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 437,249

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#32. Yolo County

– Total small business establishments: 4,362 (20.5 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 213,039

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#31. Calaveras County

– Total small business establishments: 947 (20.5 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 46,219

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#30. Sutter County

– Total small business establishments: 2,044 (20.6 per 1,000 residents)
– Share of establishments that are small: 100.0%
– 2021 population: 99,038

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#29. Contra Costa County

– Total small business establishments: 25,150 (21.6 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 1,163,298

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#28. Butte County

– Total small business establishments: 4,610 (22.4 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 206,190

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#27. Tuolumne County

– Total small business establishments: 1,245 (22.6 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 55,065

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#26. Sierra County

– Total small business establishments: 77 (23.4 per 1,000 residents)
– Share of establishments that are small: 100.0%
– 2021 population: 3,295

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#25. Humboldt County

– Total small business establishments: 3,180 (23.6 per 1,000 residents)
– Share of establishments that are small: 100.0%
– 2021 population: 134,836

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#24. Siskiyou County

– Total small business establishments: 1,050 (23.9 per 1,000 residents)
– Share of establishments that are small: 99.7%
– 2021 population: 44,026

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#23. Shasta County

– Total small business establishments: 4,512 (24.8 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 181,981

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#22. El Dorado County

– Total small business establishments: 4,815 (24.9 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 193,590

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#21. Alameda County

– Total small business establishments: 41,348 (25.2 per 1,000 residents)
– Share of establishments that are small: 99.7%
– 2021 population: 1,643,837

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#20. Santa Clara County

– Total small business establishments: 48,524 (25.7 per 1,000 residents)
– Share of establishments that are small: 99.5%
– 2021 population: 1,886,595

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#19. Inyo County

– Total small business establishments: 490 (25.9 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 18,927

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#18. Ventura County

– Total small business establishments: 22,132 (26.4 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 839,358

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#17. Mendocino County

– Total small business establishments: 2,434 (26.8 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 91,003

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#16. Santa Cruz County

– Total small business establishments: 7,073 (27.2 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 260,495

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#15. San Diego County

– Total small business establishments: 90,078 (27.5 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 3,274,954

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#14. Santa Barbara County

– Total small business establishments: 12,102 (27.7 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 437,434

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#13. Placer County

– Total small business establishments: 11,666 (28.3 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 412,789

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#12. San Mateo County

– Total small business establishments: 21,327 (28.9 per 1,000 residents)
– Share of establishments that are small: 99.6%
– 2021 population: 739,060

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#11. Sonoma County

– Total small business establishments: 14,383 (29.7 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 484,315

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#10. Los Angeles County

– Total small business establishments: 296,746 (30.2 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 9,811,842

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#9. Plumas County

– Total small business establishments: 614 (30.8 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 19,940

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#8. Nevada County

– Total small business establishments: 3,224 (31.2 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 103,457

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#7. San Luis Obispo County

– Total small business establishments: 8,716 (31.2 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 279,298

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#6. Napa County

– Total small business establishments: 4,400 (32.3 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 136,206

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#5. Orange County

– Total small business establishments: 103,620 (32.8 per 1,000 residents)
– Share of establishments that are small: 99.8%
– 2021 population: 3,161,005

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#4. Alpine County

– Total small business establishments: 44 (35.6 per 1,000 residents)
– Share of establishments that are small: 93.6%
– 2021 population: 1,235

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#3. Marin County

– Total small business establishments: 9,991 (38.6 per 1,000 residents)
– Share of establishments that are small: 99.9%
– 2021 population: 259,162

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#2. San Francisco

– Total small business establishments: 33,937 (41.8 per 1,000 residents)
– Share of establishments that are small: 99.5%
– 2021 population: 811,253

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#1. Mono County

– Total small business establishments: 658 (49.6 per 1,000 residents)
– Share of establishments that are small: 99.4%
– 2021 population: 13,261

This story originally appeared on altLINE and was produced and distributed in partnership with Stacker Studio.