RANKING · 2010 CENSUS · 58 SHOWN OF 58

Highest fertility rate, California counties · 2010

California counties ranked by general fertility rate, meaning births per 1,000 women ages 15-50 in the past 12 months (2010 ACS). This list covers the 58 counties in California that qualify, ranked against each other statewide. The median across all 58 is 55.0.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

RANKPLACESTATEPOPBIRTHS PER 1,000 WOMEN (15-50)VS –

01Inyo County, CACA18,15894.0–

02Yuba County, CACA88,69182.6–

03Tulare County, CACA485,14682.6–

04Merced County, CACA297,26081.6–

05Tehama County, CACA64,66579.1–

06Lassen County, CACA28,11777.2–

07Glenn County, CACA28,14175.6–

08Kern County, CACA927,06874.2–

09Fresno County, CACA1,035,45671.1–

10Imperial County, CACA181,41169.3–

11San Joaquin County, CACA823,81568.3–

12Solano County, CACA455,37666.0–

13Kings County, CACA154,32765.5–

14Stanislaus County, CACA557,71964.9–

15Monterey County, CACA433,72963.8–

16Sutter County, CACA98,78763.7–

17Riverside County, CACA2,544,91662.0–

18Del Norte County, CACA26,41061.8–

19Santa Clara County, CACA1,914,39161.3–

20Mariposa County, CACA16,91860.9–

21San Bernardino County, CACA2,224,09160.7–

22Humboldt County, CACA131,64759.3–

23Madera County, CACA167,92758.9–

24Napa County, CACA132,94958.8–

25Shasta County, CACA181,64858.3–

26Colusa County, CACA21,83657.4–

27Sacramento County, CACA1,618,46057.2–

28San Diego County, CACA3,282,24855.9–

29Tuolumne County, CACA53,16055.0–

30Ventura County, CACA830,85154.9–

31San Mateo County, CACA743,56854.9–

32Butte County, CACA209,21154.8–

33Orange County, CACA3,149,50753.8–

34Modoc County, CACA8,42653.4–

35Siskiyou County, CACA42,01353.1–

36Los Angeles County, CACA9,694,93453.1–

37Placer County, CACA442,08152.5–

38Santa Barbara County, CACA442,06552.5–

39Santa Cruz County, CACA258,85252.0–

40Contra Costa County, CACA1,170,07051.1–

41Trinity County, CACA15,72050.9–

42Mendocino County, CACA88,12250.0–

43Nevada County, CACA101,91150.0–

44Lake County, CACA67,77249.9–

45San Benito County, CACA70,08249.2–

46Alameda County, CACA1,636,63048.6–

47Yolo County, CACA224,41048.1–

48San Luis Obispo County, CACA282,36747.6–

49Plumas County, CACA18,58346.8–

50Sonoma County, CACA486,44446.8–

51El Dorado County, CACA192,32344.2–

52Amador County, CACA41,87643.2–

53Marin County, CACA253,69442.9–

54San Francisco County, CACA826,07938.9–

55Calaveras County, CACA46,60537.8–

56Alpine County, CACA1,04332.5–

57Mono County, CACA12,50520.5–

58Sierra County, CACA3,0985.2–

SHOWING 1–58 OF 58

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS