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RANKING · 2020 CENSUS · 64 SHOWN OF 64

Most uninsured people, Colorado counties · 2020

Colorado counties with the most residents lacking health insurance, as of the 2020 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 statesAll rankings
SAME RANKING BYCitiesStatesMetros
RELATEDLargest foreign-born populationMost residents with a disabilityLargest veteran populationLargest senior populationMost unmarried peopleMost unmarried men
YEAR20202024
Most uninsured people by state
RANKPLACESTATEPOPUNINSURED RESIDENTSVS –
01Denver County, COCO740,61368,142
02Adams County, COCO554,66851,909
03Arapahoe County, COCO673,82050,808
04El Paso County, COCO757,04048,427
05Jefferson County, COCO580,45130,317
06Weld County, COCO378,42627,740
07Larimer County, COCO377,29220,839
08Boulder County, COCO328,56014,420
09Mesa County, COCO162,84514,312
10Douglas County, COCO399,39612,076
11Pueblo County, COCO169,27711,001
12Garfield County, COCO63,47410,465
13Eagle County, COCO54,2916,531
14La Plata County, COCO56,8984,984
15Montrose County, COCO44,5914,883
16Summit County, COCO31,5174,669
17Broomfield County, COCO79,1744,176
18Montezuma County, COCO26,6783,322
19Delta County, COCO32,1782,834
20Morgan County, COCO30,3062,744
21Fremont County, COCO50,0392,518
22Logan County, COCO20,6542,108
23Teller County, COCO24,7562,045
24Chaffee County, COCO20,8312,026
25Grand County, COCO16,4961,990
26Routt County, COCO25,3291,821
27Alamosa County, COCO16,6881,769
28Moffat County, COCO13,1221,706
29Park County, COCO18,3141,704
30Archuleta County, COCO14,3061,678
31Elbert County, COCO30,5341,592
32Otero County, COCO17,6831,566
33Pitkin County, COCO16,6251,554
34Gunnison County, COCO17,4391,462
35Prowers County, COCO11,8841,284
36Rio Grande County, COCO11,0871,283
37Lake County, COCO7,5521,181
38Yuma County, COCO9,8961,173
39Clear Creek County, COCO8,9941,078
40Las Animas County, COCO14,3911,020
41Conejos County, COCO7,529935
42San Miguel County, COCO7,753778
43Saguache County, COCO6,732760
44Kit Carson County, COCO7,069734
45Rio Blanco County, COCO6,683701
46Phillips County, COCO4,420578
47Ouray County, COCO5,265558
48Huerfano County, COCO7,011534
49Custer County, COCO5,590502
50Costilla County, COCO3,679425
51Bent County, COCO5,716371
52Gilpin County, COCO6,073327
53Crowley County, COCO5,677309
54Baca County, COCO3,347278
55Sedgwick County, COCO2,247223
56Lincoln County, COCO5,645187
57Washington County, COCO4,732187
58Cheyenne County, COCO1,713132
59Mineral County, COCO910129
60Hinsdale County, COCO753118
61Jackson County, COCO1,211118
62Dolores County, COCO2,466105
64Kiowa County, COCO1,41244
SHOWING 1–64 OF 64
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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS