RANKING · 2024 ACS · 64 SHOWN OF 64

Most uninsured people, Colorado counties

Colorado counties with the most residents lacking health insurance, as of the 2024 American Community Survey. Ranked by number of people, not the uninsured rate. This list covers the 64 counties in Colorado that qualify, ranked against each other statewide.

ColoradoAll states All rankings

SAME RANKING BYCities States Metros

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Largest senior population Most unmarried people Most unmarried men

RANKPLACESTATEPOPUNINSURED RESIDENTSVS 2020

01Denver County, COCO740,61364,240−6%

02Adams County, COCO554,66861,088+18%

03Arapahoe County, COCO673,82060,758+20%

04El Paso County, COCO757,04050,686+5%

05Jefferson County, COCO580,45130,167−0%

06Weld County, COCO378,42628,015+1%

07Larimer County, COCO377,29220,550−1%

08Mesa County, COCO162,84515,558+9%

09Douglas County, COCO399,39614,508+20%

10Boulder County, COCO328,56014,405−0%

11Garfield County, COCO63,4749,641−8%

12Pueblo County, COCO169,2778,648−21%

13Eagle County, COCO54,2916,005−8%

14Montrose County, COCO44,5915,762+18%

15La Plata County, COCO56,8984,607−8%

16Delta County, COCO32,1783,672+30%

17Morgan County, COCO30,3063,551+29%

18Broomfield County, COCO79,1743,330−20%

19Summit County, COCO31,5173,169−32%

20Montezuma County, COCO26,6782,900−13%

21Fremont County, COCO50,0392,733+9%

22Routt County, COCO25,3291,884+3%

23Grand County, COCO16,4961,826−8%

24Teller County, COCO24,7561,710−16%

25Yuma County, COCO9,8961,540+31%

26Archuleta County, COCO14,3061,451−14%

27Elbert County, COCO30,5341,414−11%

28Logan County, COCO20,6541,372−35%

29Moffat County, COCO13,1221,276−25%

30San Miguel County, COCO7,7531,211+56%

31Chaffee County, COCO20,8311,210−40%

32Otero County, COCO17,6831,197−24%

33Rio Grande County, COCO11,0871,187−7%

34Las Animas County, COCO14,3911,167+14%

35Prowers County, COCO11,8841,135−12%

36Park County, COCO18,3141,065−38%

37Conejos County, COCO7,5291,021+9%

38Lake County, COCO7,5521,001−15%

39Alamosa County, COCO16,688945−47%

40Gunnison County, COCO17,439854−42%

41Pitkin County, COCO16,625841−46%

42Kit Carson County, COCO7,069829+13%

43Saguache County, COCO6,732828+9%

44Ouray County, COCO5,265644+15%

45Rio Blanco County, COCO6,683615−12%

46Clear Creek County, COCO8,994520−52%

47Lincoln County, COCO5,645342+83%

48Bent County, COCO5,716323−13%

49Crowley County, COCO5,677316+2%

50Costilla County, COCO3,679305−28%

51Phillips County, COCO4,420301−48%

52Washington County, COCO4,732279+49%

53Custer County, COCO5,590262−48%

54Baca County, COCO3,347249−10%

55Huerfano County, COCO7,011247−54%

56Gilpin County, COCO6,073228−30%

57Sedgwick County, COCO2,247228+2%

58Dolores County, COCO2,466192+83%

59Kiowa County, COCO1,412118+168%

60Jackson County, COCO1,211105−11%

61Mineral County, COCO91094−27%

62Hinsdale County, COCO75393−21%

63Cheyenne County, COCO1,71390−32%

64San Juan County, COCO81373+3%

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