RANKING · 2010 CENSUS · 64 SHOWN OF 64

Lowest fertility rate, Colorado counties · 2010

Colorado counties with the lowest general fertility rate, births per 1,000 women ages 15-50 in the past 12 months (2010 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 –

01Mineral County, COCO9100.0–

02San Juan County, COCO8130.0–

03Dolores County, COCO2,4669.7–

04Ouray County, COCO5,26512.4–

05Clear Creek County, COCO8,99413.9–

06San Miguel County, COCO7,75320.3–

07Huerfano County, COCO7,01120.4–

08Delta County, COCO32,17831.1–

09Park County, COCO18,31431.6–

10Moffat County, COCO13,12231.6–

11Teller County, COCO24,75631.9–

12Elbert County, COCO30,53432.0–

13Summit County, COCO31,51732.6–

14Archuleta County, COCO14,30635.8–

15Rio Grande County, COCO11,08739.0–

16Lincoln County, COCO5,64539.3–

17Jackson County, COCO1,21141.2–

18Kiowa County, COCO1,41242.4–

19Las Animas County, COCO14,39142.6–

20Washington County, COCO4,73243.4–

21Lake County, COCO7,55246.1–

22Boulder County, COCO328,56046.5–

23Bent County, COCO5,71647.4–

24Broomfield County, COCO79,17448.5–

25Garfield County, COCO63,47449.0–

26Larimer County, COCO377,29249.6–

27Costilla County, COCO3,67949.9–

28Jefferson County, COCO580,45151.3–

29La Plata County, COCO56,89851.8–

30Cheyenne County, COCO1,71352.3–

31Grand County, COCO16,49654.1–

32Arapahoe County, COCO673,82054.2–

33Gunnison County, COCO17,43957.9–

34Chaffee County, COCO20,83158.0–

35Pueblo County, COCO169,27758.1–

36Weld County, COCO378,42660.5–

37Denver County, COCO740,61360.9–

38Douglas County, COCO399,39661.3–

39El Paso County, COCO757,04061.5–

40Mesa County, COCO162,84561.8–

41Alamosa County, COCO16,68862.9–

42Pitkin County, COCO16,62563.2–

43Gilpin County, COCO6,07363.7–

44Morgan County, COCO30,30664.3–

45Adams County, COCO554,66866.9–

46Rio Blanco County, COCO6,68367.3–

47Routt County, COCO25,32968.7–

48Saguache County, COCO6,73268.8–

49Otero County, COCO17,68370.5–

50Sedgwick County, COCO2,24770.6–

51Eagle County, COCO54,29172.9–

52Montrose County, COCO44,59173.5–

53Baca County, COCO3,34774.3–

54Crowley County, COCO5,67777.1–

55Conejos County, COCO7,52977.2–

56Kit Carson County, COCO7,06978.7–

57Fremont County, COCO50,03980.5–

58Prowers County, COCO11,88481.1–

59Custer County, COCO5,59094.1–

60Phillips County, COCO4,42099.4–

61Logan County, COCO20,65499.8–

62Montezuma County, COCO26,678102.0–

63Yuma County, COCO9,896122.2–

64Hinsdale County, COCO753125.0–

SHOWING 1–64 OF 64

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS