RANKING · 2010 CENSUS · 58 SHOWN OF 58

Lowest fertility rate, California counties · 2010

California counties with the lowest general fertility rate, births per 1,000 women ages 15-50 in the past 12 months (2023 ACS). This list covers the 58 counties in California that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2024

RANKPLACESTATEPOPBIRTHS PER 1,000 WOMEN (15-50)VS 2000

01Sierra County, CACA3,0985.2–

02Mono County, CACA12,50520.5–

03Alpine County, CACA1,04332.5–

04Calaveras County, CACA46,60537.8–

05San Francisco County, CACA826,07938.9–

06Marin County, CACA253,69442.9–

07Amador County, CACA41,87643.2–

08El Dorado County, CACA192,32344.2–

09Sonoma County, CACA486,44446.8–

10Plumas County, CACA18,58346.8–

11San Luis Obispo County, CACA282,36747.6–

12Yolo County, CACA224,41048.1–

13Alameda County, CACA1,636,63048.6–

14San Benito County, CACA70,08249.2–

15Lake County, CACA67,77249.9–

16Nevada County, CACA101,91150.0–

17Mendocino County, CACA88,12250.0–

18Trinity County, CACA15,72050.9–

19Contra Costa County, CACA1,170,07051.1–

20Santa Cruz County, CACA258,85252.0–

21Santa Barbara County, CACA442,06552.5–

22Placer County, CACA442,08152.5–

23Los Angeles County, CACA9,694,93453.1–

24Siskiyou County, CACA42,01353.1–

25Modoc County, CACA8,42653.4–

26Orange County, CACA3,149,50753.8–

27Butte County, CACA209,21154.8–

28San Mateo County, CACA743,56854.9–

29Ventura County, CACA830,85154.9–

30Tuolumne County, CACA53,16055.0–

31San Diego County, CACA3,282,24855.9–

32Sacramento County, CACA1,618,46057.2–

33Colusa County, CACA21,83657.4–

34Shasta County, CACA181,64858.3–

35Napa County, CACA132,94958.8–

36Madera County, CACA167,92758.9–

37Humboldt County, CACA131,64759.3–

38San Bernardino County, CACA2,224,09160.7–

39Mariposa County, CACA16,91860.9–

40Santa Clara County, CACA1,914,39161.3–

41Del Norte County, CACA26,41061.8–

42Riverside County, CACA2,544,91662.0–

43Sutter County, CACA98,78763.7–

44Monterey County, CACA433,72963.8–

45Stanislaus County, CACA557,71964.9–

46Kings County, CACA154,32765.5–

47Solano County, CACA455,37666.0–

48San Joaquin County, CACA823,81568.3–

49Imperial County, CACA181,41169.3–

50Fresno County, CACA1,035,45671.1–

51Kern County, CACA927,06874.2–

52Glenn County, CACA28,14175.6–

53Lassen County, CACA28,11777.2–

54Tehama County, CACA64,66579.1–

55Merced County, CACA297,26081.6–

56Tulare County, CACA485,14682.6–

57Yuba County, CACA88,69182.6–

58Inyo County, CACA18,15894.0–

SHOWING 1–58 OF 58

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UPDATED 2026-06-02 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES