RANKING · 2024 ACS · 58 SHOWN OF 58

Highest fertility rate, California counties

California counties ranked by general fertility rate, meaning births per 1,000 women ages 15-50 in the past 12 months (2024 ACS). This list covers the 58 counties in California that qualify, ranked against each other statewide. The median across all 58 is 50.7.

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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 2010

01Alpine County, CACA1,043196.9+505%

02Calaveras County, CACA46,605122.6+224%

03Modoc County, CACA8,426112.4+111%

04Colusa County, CACA21,83693.3+63%

05Amador County, CACA41,87682.1+90%

06Madera County, CACA167,92779.8+35%

07Lake County, CACA67,77277.2+55%

08Yuba County, CACA88,69176.2−8%

09Kings County, CACA154,32774.7+14%

10Glenn County, CACA28,14173.4−3%

11Tehama County, CACA64,66571.7−9%

12Sutter County, CACA98,78764.8+2%

13Solano County, CACA455,37662.1−6%

14Kern County, CACA927,06862.0−16%

15Tulare County, CACA485,14660.8−26%

16Mendocino County, CACA88,12259.2+19%

17Merced County, CACA297,26058.1−29%

18Marin County, CACA253,69457.7+34%

19Imperial County, CACA181,41157.6−17%

20Placer County, CACA442,08157.0+9%

21Contra Costa County, CACA1,170,07055.6+9%

22Tuolumne County, CACA53,16054.80%

23Fresno County, CACA1,035,45654.3−24%

24San Joaquin County, CACA823,81552.4−23%

25San Bernardino County, CACA2,224,09151.9−15%

26Ventura County, CACA830,85151.8−6%

27Riverside County, CACA2,544,91651.8−16%

28Sacramento County, CACA1,618,46051.0−11%

29San Diego County, CACA3,282,24850.7−9%

30San Benito County, CACA70,08249.6+1%

31Stanislaus County, CACA557,71949.6−24%

32Sonoma County, CACA486,44449.4+6%

33San Mateo County, CACA743,56849.0−11%

34Monterey County, CACA433,72947.6−25%

35Siskiyou County, CACA42,01347.2−11%

36Santa Barbara County, CACA442,06546.2−12%

37Santa Cruz County, CACA258,85246.1−11%

38Lassen County, CACA28,11746.1−40%

39Alameda County, CACA1,636,63045.3−7%

40San Luis Obispo County, CACA282,36744.6−6%

41Del Norte County, CACA26,41044.1−29%

42Orange County, CACA3,149,50744.0−18%

43Napa County, CACA132,94943.4−26%

44Trinity County, CACA15,72043.0−15%

45Nevada County, CACA101,91142.9−14%

46Santa Clara County, CACA1,914,39142.7−30%

47Los Angeles County, CACA9,694,93442.3−20%

48El Dorado County, CACA192,32342.2−5%

49Shasta County, CACA181,64841.4−29%

50Butte County, CACA209,21139.1−29%

51Mono County, CACA12,50538.8+89%

52San Francisco County, CACA826,07937.9−3%

53Plumas County, CACA18,58337.6−20%

54Yolo County, CACA224,41037.5−22%

55Humboldt County, CACA131,64729.6−50%

56Mariposa County, CACA16,91816.6−73%

57Inyo County, CACA18,15815.4−84%

58Sierra County, CACA3,0981.9−64%

SHOWING 1–58 OF 58

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES