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. The median across all 64 is 1,197. Biggest climber in the top 100 since 2020: Yuma County, CO, up 13 places to #25.

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, COCO580,45130,1670%

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

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

08▲1Mesa County, COCO162,84515,558+9%

09▲1Douglas County, COCO399,39614,508+20%

10▼2Boulder County, COCO328,56014,4050%

11▲1Garfield County, COCO63,4749,641−8%

12▼1Pueblo County, COCO169,2778,648−21%

13Eagle County, COCO54,2916,005−8%

14▲1Montrose County, COCO44,5915,762+18%

15▼1La Plata County, COCO56,8984,607−8%

16▲3Delta County, COCO32,1783,672+30%

17▲3Morgan County, COCO30,3063,551+29%

18▼1Broomfield County, COCO79,1743,330−20%

19▼3Summit County, COCO31,5173,169−32%

20▼2Montezuma County, COCO26,6782,900−13%

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

22▲4Routt County, COCO25,3291,884+3%

23▲2Grand County, COCO16,4961,826−8%

24▼1Teller County, COCO24,7561,710−16%

25▲13Yuma County, COCO9,8961,540+31%

26▲4Archuleta County, COCO14,3061,451−14%

27▲4Elbert County, COCO30,5341,414−11%

28▼6Logan County, COCO20,6541,372−35%

29▼1Moffat County, COCO13,1221,276−25%

30▲12San Miguel County, COCO7,7531,211+56%

31▼7Chaffee County, COCO20,8311,210−40%

32Otero County, COCO17,6831,197−24%

33▲3Rio Grande County, COCO11,0871,187−7%

34▲6Las Animas County, COCO14,3911,167+14%

35Prowers County, COCO11,8841,135−12%

36▼7Park County, COCO18,3141,065−38%

37▲4Conejos County, COCO7,5291,021+9%

38▼1Lake County, COCO7,5521,001−15%

39▼12Alamosa County, COCO16,688945−47%

40▼6Gunnison County, COCO17,439854−42%

41▼8Pitkin County, COCO16,625841−46%

42▲2Kit Carson County, COCO7,069829+13%

43Saguache County, COCO6,732828+9%

44▲3Ouray County, COCO5,265644+15%

45Rio Blanco County, COCO6,683615−12%

46▼7Clear Creek County, COCO8,994520−52%

47▲9Lincoln County, COCO5,645342+83%

48▲3Bent County, COCO5,716323−13%

49▲4Crowley County, COCO5,677316+2%

50Costilla County, COCO3,679305−28%

51▼5Phillips County, COCO4,420301−48%

52▲5Washington County, COCO4,732279+49%

53▼4Custer County, COCO5,590262−48%

54Baca County, COCO3,347249−10%

55▼7Huerfano County, COCO7,011247−54%

56▼4Gilpin County, COCO6,073228−30%

57▼2Sedgwick County, COCO2,247228+2%

58▲4Dolores County, COCO2,466192+83%

59▲5Kiowa County, COCO1,412118+168%

60▲1Jackson County, COCO1,211105−11%

61▼2Mineral County, COCO91094−27%

62▼2Hinsdale County, COCO75393−21%

63▼5Cheyenne County, COCO1,71390−32%

64▼1San Juan County, COCO81373+3%

SHOWING 1–64 OF 64

Download CSV (full list, 64 rows)

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