Counties in Colorado by uninsured rate, under 65 (US model-based estimate)

Saguache County had the highest uninsured rate, under 65 (US model-based estimate) of 64 counties in 2015, at 19.5%. Douglas County had the lowest, at 3.5%. The median was 11.1% and the figure for Colorado was 9.2%. Source: the U.S. Census Bureau.

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Highest19.5Saguache County
Median11.164 counties
Colorado9.2History

Map of counties, 2015

Adams County: 12.6 %Alamosa County: 12.9 %Arapahoe County: 9.4 %Archuleta County: 13.2 %Baca County: 13.4 %Bent County: 10.5 %Boulder County: 7.3 %Broomfield County: 4.8 %Chaffee County: 10.1 %Cheyenne County: 15.8 %Clear Creek County: 6.3 %Conejos County: 11.4 %Costilla County: 15.8 %Crowley County: 9.5 %Custer County: 13.5 %Delta County: 11.4 %Denver County: 12.1 %Dolores County: 12.5 %Douglas County: 3.5 %Eagle County: 14 %Elbert County: 7.6 %El Paso County: 8.1 %Fremont County: 9.6 %Garfield County: 16 %Gilpin County: 4.4 %Grand County: 9.2 %Gunnison County: 11.7 %Hinsdale County: 11.8 %Huerfano County: 10.1 %Jackson County: 16.7 %Jefferson County: 7 %Kiowa County: 12.2 %Kit Carson County: 14.3 %Lake County: 11.7 %La Plata County: 10.2 %Larimer County: 7 %Las Animas County: 10.9 %Lincoln County: 9 %Logan County: 11.1 %Mesa County: 10.8 %Mineral County: 11.1 %Moffat County: 10.5 %Montezuma County: 14.8 %Montrose County: 13.2 %Morgan County: 12.6 %Otero County: 12.4 %Ouray County: 10.4 %Park County: 8.8 %Phillips County: 14.6 %Pitkin County: 11.2 %Prowers County: 13.8 %Pueblo County: 9.1 %Rio Blanco County: 9.9 %Rio Grande County: 12.9 %Routt County: 8.1 %Saguache County: 19.5 %San Juan County: 12.2 %San Miguel County: 10.9 %Sedgwick County: 11.2 %Summit County: 11.9 %Teller County: 7.8 %Washington County: 10.6 %Weld County: 8.4 %Yuma County: 12.3 %
  • Under 8.3
  • 8.3 to 10
  • 10 to 11
  • 11 to 12
  • 12 to 13
  • 13 and over
%, 2015. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2015

Saguache County: 19.5 %Saguache County19.5Jackson County: 16.7 %Jackson County16.7Garfield County: 16 %Garfield County16Cheyenne County: 15.8 %Cheyenne County15.8Costilla County: 15.8 %Costilla County15.8Montezuma County: 14.8 %Montezuma County14.8Phillips County: 14.6 %Phillips County14.6Kit Carson County: 14.3 %Kit Carson County14.3Eagle County: 14 %Eagle County14Prowers County: 13.8 %Prowers County13.8Custer County: 13.5 %Custer County13.5Baca County: 13.4 %Baca County13.4Archuleta County: 13.2 %Archuleta County13.2Montrose County: 13.2 %Montrose County13.2Alamosa County: 12.9 %Alamosa County12.9Rio Grande County: 12.9 %Rio Grande County12.9Adams County: 12.6 %Adams County12.6Morgan County: 12.6 %Morgan County12.6Dolores County: 12.5 %Dolores County12.5Otero County: 12.4 %Otero County12.4Yuma County: 12.3 %Yuma County12.3Kiowa County: 12.2 %Kiowa County12.2San Juan County: 12.2 %San Juan County12.2Denver County: 12.1 %Denver County12.1Summit County: 11.9 %Summit County11.9Hinsdale County: 11.8 %Hinsdale County11.8Gunnison County: 11.7 %Gunnison County11.7Lake County: 11.7 %Lake County11.7Conejos County: 11.4 %Conejos County11.4Delta County: 11.4 %Delta County11.4Pitkin County: 11.2 %Pitkin County11.2Sedgwick County: 11.2 %Sedgwick County11.2Logan County: 11.1 %Logan County11.1Mineral County: 11.1 %Mineral County11.1Las Animas County: 10.9 %Las Animas County10.9San Miguel County: 10.9 %San Miguel County10.9Mesa County: 10.8 %Mesa County10.8Washington County: 10.6 %Washington County10.6Bent County: 10.5 %Bent County10.5Moffat County: 10.5 %Moffat County10.5Saguache County: 19.5 %Saguache County19.5Jackson County: 16.7 %Jackson County16.7Garfield County: 16 %Garfield County16Cheyenne County: 15.8 %Cheyenne County15.8Costilla County: 15.8 %Costilla County15.8Montezuma County: 14.8 %Montezuma County14.8Phillips County: 14.6 %Phillips County14.6Kit Carson County: 14.3 %Kit Carson County14.3Eagle County: 14 %Eagle County14Prowers County: 13.8 %Prowers County13.8Custer County: 13.5 %Custer County13.5Baca County: 13.4 %Baca County13.4Archuleta County: 13.2 %Archuleta County13.2Montrose County: 13.2 %Montrose County13.2Alamosa County: 12.9 %Alamosa County12.9Rio Grande County: 12.9 %Rio Grande County12.9Adams County: 12.6 %Adams County12.6Morgan County: 12.6 %Morgan County12.6Dolores County: 12.5 %Dolores County12.5Otero County: 12.4 %Otero County12.4Yuma County: 12.3 %Yuma County12.3Kiowa County: 12.2 %Kiowa County12.2San Juan County: 12.2 %San Juan County12.2Denver County: 12.1 %Denver County12.1Summit County: 11.9 %Summit County11.9Hinsdale County: 11.8 %Hinsdale County11.8Gunnison County: 11.7 %Gunnison County11.7Lake County: 11.7 %Lake County11.7Conejos County: 11.4 %Conejos County11.4Delta County: 11.4 %Delta County11.4Pitkin County: 11.2 %Pitkin County11.2Sedgwick County: 11.2 %Sedgwick County11.2Logan County: 11.1 %Logan County11.1Mineral County: 11.1 %Mineral County11.1Las Animas County: 10.9 %Las Animas County10.9San Miguel County: 10.9 %San Miguel County10.9Mesa County: 10.8 %Mesa County10.8Washington County: 10.6 %Washington County10.6Bent County: 10.5 %Bent County10.5Moffat County: 10.5 %Moffat County10.5
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2015 (%)Change on 2014
1Saguache County19.5-2.9 pts
2Jackson County16.7-0.8 pts
3Garfield County16-2.1 pts
4Cheyenne County15.8-2.2 pts
4Costilla County15.8-4.9 pts
6Montezuma County14.8-2.7 pts
7Phillips County14.6-1.5 pts
8Kit Carson County14.3-2.5 pts
9Eagle County14-3 pts
10Prowers County13.8-3.6 pts
11Custer County13.5-2.1 pts
12Baca County13.4-3.9 pts
13Archuleta County13.2-3.4 pts
13Montrose County13.2-2.6 pts
15Alamosa County12.9-2.9 pts
15Rio Grande County12.9-2.5 pts
17Adams County12.6-2.7 pts
17Morgan County12.6-3.2 pts
19Dolores County12.5-3.4 pts
20Otero County12.4-1.6 pts
21Yuma County12.3-4.4 pts
22Kiowa County12.2-0.2 pts
22San Juan County12.2-0.9 pts
24Denver County12.1-1.9 pts
25Summit County11.9-1.1 pts
26Hinsdale County11.8-3.6 pts
27Gunnison County11.7-3.3 pts
27Lake County11.7-5.5 pts
29Conejos County11.4-3.1 pts
29Delta County11.4-4.7 pts
31Pitkin County11.2-2.5 pts
31Sedgwick County11.2-3.2 pts
33Logan County11.1-2.1 pts
33Mineral County11.1-0.9 pts
35Las Animas County10.9-2.6 pts
35San Miguel County10.9-2.5 pts
37Mesa County10.8-2.2 pts
38Washington County10.6-2.8 pts
39Bent County10.5-2.1 pts
39Moffat County10.5-1.9 pts
41Ouray County10.4-1.9 pts
42La Plata County10.2-3.6 pts
43Chaffee County10.1-2.3 pts
43Huerfano County10.1-3.9 pts
45Rio Blanco County9.9-2.4 pts
46Fremont County9.6-2.6 pts
47Crowley County9.5-3.2 pts
48Arapahoe County9.4-2.8 pts
49Grand County9.2-4.6 pts
50Pueblo County9.1-2.4 pts
51Lincoln County9-2.9 pts
52Park County8.8-3 pts
53Weld County8.4-3.7 pts
54El Paso County8.1-2.1 pts
54Routt County8.1-3.5 pts
56Teller County7.8-2.4 pts
57Elbert County7.6-1.6 pts
58Boulder County7.3-2.6 pts
59Jefferson County7-2.2 pts
59Larimer County7-3.3 pts
61Clear Creek County6.3-1.3 pts
62Broomfield County4.8-2 pts
63Gilpin County4.4-2.1 pts
64Douglas County3.5-1.6 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. People 65 and over are left out because nearly all of them have Medicare.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties (Counties in Colorado by uninsured rate, under 65 (US model-based estimate), 2015) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Colorado by uninsured rate, under 65 (US model-based estimate), 2015. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/colorado-counties?period=2015. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in Colorado by uninsured rate, under 65 (US model-based estimate), 2015. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/colorado-counties?period=2015.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in Colorado by uninsured rate, under 65 (US model-based estimate), 2015 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/colorado-counties?period=2015 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_colorado_by_2015,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Colorado by uninsured rate, under 65 (US model-based estimate), 2015}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/colorado-counties?period=2015. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in Colorado by uninsured rate, under 65 (US model-based estimate), 2015
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/colorado-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/colorado-counties?period=2015.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2015-csv.zip. Retrieved 2026-10-12.
ER  - 
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Saguache County, with 19.5% in 2015, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

Douglas County, with 3.5% in 2015.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in Colorado: more rankings