RANKING · 2024 ACS · 64 SHOWN OF 64

Lowest fertility rate, Colorado counties

Colorado counties with the lowest general fertility rate, 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.

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SAME RANKING BYCities States Metros ZIP codes

YEAR2010 2024

RANKPLACESTATEPOPBIRTHS PER 1,000 WOMEN (15-50)VS 2010

01Hinsdale County, COCO7530.0−100%

02Huerfano County, COCO7,0110.0−100%

03Jackson County, COCO1,2110.0−100%

04Gunnison County, COCO17,43911.1−81%

05Saguache County, COCO6,73214.1−80%

06Summit County, COCO31,51719.8−39%

07San Miguel County, COCO7,75324.2+19%

08Cheyenne County, COCO1,71324.8−53%

09Conejos County, COCO7,52925.0−68%

10Archuleta County, COCO14,30625.3−29%

11Custer County, COCO5,59028.0−70%

12Boulder County, COCO328,56029.7−36%

13Lincoln County, COCO5,64532.1−18%

14Pitkin County, COCO16,62534.6−45%

15Las Animas County, COCO14,39136.0−16%

16Ouray County, COCO5,26536.0+189%

17Mesa County, COCO162,84538.2−38%

18Grand County, COCO16,49638.4−29%

19Pueblo County, COCO169,27739.3−32%

20Denver County, COCO740,61342.4−30%

21Crowley County, COCO5,67742.7−45%

22Routt County, COCO25,32943.2−37%

23Chaffee County, COCO20,83143.6−25%

24Larimer County, COCO377,29243.9−11%

25Broomfield County, COCO79,17444.9−7%

26Jefferson County, COCO580,45145.7−11%

27Douglas County, COCO399,39648.4−21%

28Clear Creek County, COCO8,99449.8+258%

29Arapahoe County, COCO673,82050.6−7%

30Garfield County, COCO63,47450.9+4%

31Eagle County, COCO54,29152.0−29%

32Adams County, COCO554,66853.2−21%

33Kiowa County, COCO1,41253.3+26%

34Rio Blanco County, COCO6,68353.7−20%

35Elbert County, COCO30,53454.5+71%

36Fremont County, COCO50,03955.0−32%

37La Plata County, COCO56,89857.7+11%

38Lake County, COCO7,55258.3+27%

39Montezuma County, COCO26,67858.8−42%

40Otero County, COCO17,68359.7−15%

41Montrose County, COCO44,59159.8−19%

42El Paso County, COCO757,04060.0−2%

43Weld County, COCO378,42661.2+1%

44Yuma County, COCO9,89661.5−50%

45Teller County, COCO24,75661.5+93%

46Costilla County, COCO3,67966.0+32%

47Alamosa County, COCO16,68866.5+6%

48Moffat County, COCO13,12270.9+124%

49Park County, COCO18,31471.7+127%

50Morgan County, COCO30,30672.4+13%

51Prowers County, COCO11,88473.4−9%

52Logan County, COCO20,65474.0−26%

53Delta County, COCO32,17874.3+139%

54Rio Grande County, COCO11,08777.9+100%

55Dolores County, COCO2,46685.4+784%

56Bent County, COCO5,71687.2+84%

57Sedgwick County, COCO2,24789.1+26%

58Baca County, COCO3,34797.4+31%

59Phillips County, COCO4,42099.0−0%

60San Juan County, COCO813100.6–

61Washington County, COCO4,732106.1+144%

62Kit Carson County, COCO7,069108.8+38%

63Gilpin County, COCO6,073111.1+74%

64Mineral County, COCO910219.3–

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES