RANKING · 2024 ACS · 64 SHOWN OF 64

Highest fertility rate, Colorado counties

Colorado 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 64 counties in Colorado that qualify, ranked against each other statewide. The median across all 64 is 53.3.

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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

01Mineral County, COCO910219.3–

02Gilpin County, COCO6,073111.1+74%

03Kit Carson County, COCO7,069108.8+38%

04Washington County, COCO4,732106.1+144%

05San Juan County, COCO813100.6–

06Phillips County, COCO4,42099.00%

07Baca County, COCO3,34797.4+31%

08Sedgwick County, COCO2,24789.1+26%

09Bent County, COCO5,71687.2+84%

10Dolores County, COCO2,46685.4+784%

11Rio Grande County, COCO11,08777.9+100%

12Delta County, COCO32,17874.3+139%

13Logan County, COCO20,65474.0−26%

14Prowers County, COCO11,88473.4−9%

15Morgan County, COCO30,30672.4+13%

16Park County, COCO18,31471.7+127%

17Moffat County, COCO13,12270.9+124%

18Alamosa County, COCO16,68866.5+6%

19Costilla County, COCO3,67966.0+32%

20Teller County, COCO24,75661.5+93%

21Yuma County, COCO9,89661.5−50%

22Weld County, COCO378,42661.2+1%

23El Paso County, COCO757,04060.0−2%

24Montrose County, COCO44,59159.8−19%

25Otero County, COCO17,68359.7−15%

26Montezuma County, COCO26,67858.8−42%

27Lake County, COCO7,55258.3+27%

28La Plata County, COCO56,89857.7+11%

29Fremont County, COCO50,03955.0−32%

30Elbert County, COCO30,53454.5+71%

31Rio Blanco County, COCO6,68353.7−20%

32Kiowa County, COCO1,41253.3+26%

33Adams County, COCO554,66853.2−21%

34Eagle County, COCO54,29152.0−29%

35Garfield County, COCO63,47450.9+4%

36Arapahoe County, COCO673,82050.6−7%

37Clear Creek County, COCO8,99449.8+258%

38Douglas County, COCO399,39648.4−21%

39Jefferson County, COCO580,45145.7−11%

40Broomfield County, COCO79,17444.9−7%

41Larimer County, COCO377,29243.9−11%

42Chaffee County, COCO20,83143.6−25%

43Routt County, COCO25,32943.2−37%

44Crowley County, COCO5,67742.7−45%

45Denver County, COCO740,61342.4−30%

46Pueblo County, COCO169,27739.3−32%

47Grand County, COCO16,49638.4−29%

48Mesa County, COCO162,84538.2−38%

49Ouray County, COCO5,26536.0+189%

50Las Animas County, COCO14,39136.0−16%

51Pitkin County, COCO16,62534.6−45%

52Lincoln County, COCO5,64532.1−18%

53Boulder County, COCO328,56029.7−36%

54Custer County, COCO5,59028.0−70%

55Archuleta County, COCO14,30625.3−29%

56Conejos County, COCO7,52925.0−68%

57Cheyenne County, COCO1,71324.8−53%

58San Miguel County, COCO7,75324.2+19%

59Summit County, COCO31,51719.8−39%

60Saguache County, COCO6,73214.1−80%

61Gunnison County, COCO17,43911.1−81%

62Hinsdale County, COCO7530.0−100%

63Huerfano County, COCO7,0110.0−100%

64Jackson County, COCO1,2110.0−100%

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