Counties in Colorado by uninsured rate, ages 18 to 64 (US model-based estimate)

Saguache County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 64 counties in 2015, at 22.7%. Douglas County had the lowest, at 4.1%. The median was 12.6% and the figure for Colorado was 11.1%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest22.7Saguache County
Median12.664 counties
Colorado11.1History

Map of counties, 2015

Adams County: 16 %Alamosa County: 15.7 %Arapahoe County: 11.3 %Archuleta County: 14.8 %Baca County: 15.2 %Bent County: 12.6 %Boulder County: 8.4 %Broomfield County: 5.7 %Chaffee County: 11.2 %Cheyenne County: 17.4 %Clear Creek County: 6.7 %Conejos County: 13.3 %Costilla County: 18.3 %Crowley County: 11.4 %Custer County: 14.4 %Delta County: 13.2 %Denver County: 14.4 %Dolores County: 13.9 %Douglas County: 4.1 %Eagle County: 15.9 %Elbert County: 8 %El Paso County: 9.9 %Fremont County: 11.4 %Garfield County: 19.2 %Gilpin County: 4.6 %Grand County: 10 %Gunnison County: 13.1 %Hinsdale County: 12.6 %Huerfano County: 11.6 %Jackson County: 18.1 %Jefferson County: 8.2 %Kiowa County: 13.4 %Kit Carson County: 16.7 %Lake County: 13.4 %La Plata County: 11.6 %Larimer County: 8.1 %Las Animas County: 12.6 %Lincoln County: 10.3 %Logan County: 13 %Mesa County: 12.8 %Mineral County: 11.1 %Moffat County: 12 %Montezuma County: 17.4 %Montrose County: 15.7 %Morgan County: 15.4 %Otero County: 15.1 %Ouray County: 10.7 %Park County: 9.3 %Phillips County: 16.7 %Pitkin County: 12.1 %Prowers County: 16.9 %Pueblo County: 11.3 %Rio Blanco County: 10.9 %Rio Grande County: 15.1 %Routt County: 9 %Saguache County: 22.7 %San Juan County: 12.7 %San Miguel County: 11.6 %Sedgwick County: 12.6 %Summit County: 13 %Teller County: 8.7 %Washington County: 12 %Weld County: 10.2 %Yuma County: 14.6 %
  • Under 9.6
  • 9.6 to 11
  • 11 to 13
  • 13 to 14
  • 14 to 16
  • 16 and over
%, 2015. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2015

Saguache County: 22.7 %Saguache County22.7Garfield County: 19.2 %Garfield County19.2Costilla County: 18.3 %Costilla County18.3Jackson County: 18.1 %Jackson County18.1Cheyenne County: 17.4 %Cheyenne County17.4Montezuma County: 17.4 %Montezuma County17.4Prowers County: 16.9 %Prowers County16.9Kit Carson County: 16.7 %Kit Carson County16.7Phillips County: 16.7 %Phillips County16.7Adams County: 16 %Adams County16Eagle County: 15.9 %Eagle County15.9Alamosa County: 15.7 %Alamosa County15.7Montrose County: 15.7 %Montrose County15.7Morgan County: 15.4 %Morgan County15.4Baca County: 15.2 %Baca County15.2Otero County: 15.1 %Otero County15.1Rio Grande County: 15.1 %Rio Grande County15.1Archuleta County: 14.8 %Archuleta County14.8Yuma County: 14.6 %Yuma County14.6Custer County: 14.4 %Custer County14.4Denver County: 14.4 %Denver County14.4Dolores County: 13.9 %Dolores County13.9Kiowa County: 13.4 %Kiowa County13.4Lake County: 13.4 %Lake County13.4Conejos County: 13.3 %Conejos County13.3Delta County: 13.2 %Delta County13.2Gunnison County: 13.1 %Gunnison County13.1Logan County: 13 %Logan County13Summit County: 13 %Summit County13Mesa County: 12.8 %Mesa County12.8San Juan County: 12.7 %San Juan County12.7Bent County: 12.6 %Bent County12.6Hinsdale County: 12.6 %Hinsdale County12.6Las Animas County: 12.6 %Las Animas County12.6Sedgwick County: 12.6 %Sedgwick County12.6Pitkin County: 12.1 %Pitkin County12.1Moffat County: 12 %Moffat County12Washington County: 12 %Washington County12Huerfano County: 11.6 %Huerfano County11.6La Plata County: 11.6 %La Plata County11.6Saguache County: 22.7 %Saguache County22.7Garfield County: 19.2 %Garfield County19.2Costilla County: 18.3 %Costilla County18.3Jackson County: 18.1 %Jackson County18.1Cheyenne County: 17.4 %Cheyenne County17.4Montezuma County: 17.4 %Montezuma County17.4Prowers County: 16.9 %Prowers County16.9Kit Carson County: 16.7 %Kit Carson County16.7Phillips County: 16.7 %Phillips County16.7Adams County: 16 %Adams County16Eagle County: 15.9 %Eagle County15.9Alamosa County: 15.7 %Alamosa County15.7Montrose County: 15.7 %Montrose County15.7Morgan County: 15.4 %Morgan County15.4Baca County: 15.2 %Baca County15.2Otero County: 15.1 %Otero County15.1Rio Grande County: 15.1 %Rio Grande County15.1Archuleta County: 14.8 %Archuleta County14.8Yuma County: 14.6 %Yuma County14.6Custer County: 14.4 %Custer County14.4Denver County: 14.4 %Denver County14.4Dolores County: 13.9 %Dolores County13.9Kiowa County: 13.4 %Kiowa County13.4Lake County: 13.4 %Lake County13.4Conejos County: 13.3 %Conejos County13.3Delta County: 13.2 %Delta County13.2Gunnison County: 13.1 %Gunnison County13.1Logan County: 13 %Logan County13Summit County: 13 %Summit County13Mesa County: 12.8 %Mesa County12.8San Juan County: 12.7 %San Juan County12.7Bent County: 12.6 %Bent County12.6Hinsdale County: 12.6 %Hinsdale County12.6Las Animas County: 12.6 %Las Animas County12.6Sedgwick County: 12.6 %Sedgwick County12.6Pitkin County: 12.1 %Pitkin County12.1Moffat County: 12 %Moffat County12Washington County: 12 %Washington County12Huerfano County: 11.6 %Huerfano County11.6La Plata County: 11.6 %La Plata County11.6
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2015 (%)Change on 2014
1Saguache County22.7-2.5 pts
2Garfield County19.2-2 pts
3Costilla County18.3-5 pts
4Jackson County18.1-0.8 pts
5Cheyenne County17.4-1.8 pts
5Montezuma County17.4-2.8 pts
7Prowers County16.9-3.5 pts
8Kit Carson County16.7-2.4 pts
8Phillips County16.7-1.6 pts
10Adams County16-3.3 pts
11Eagle County15.9-3 pts
12Alamosa County15.7-2.8 pts
12Montrose County15.7-2.6 pts
14Morgan County15.4-3.5 pts
15Baca County15.2-3.9 pts
16Otero County15.1-1.7 pts
16Rio Grande County15.1-2.9 pts
18Archuleta County14.8-3.4 pts
19Yuma County14.6-4.7 pts
20Custer County14.4-2.2 pts
20Denver County14.4-2 pts
22Dolores County13.9-3.7 pts
23Kiowa County13.4-0.1 pts
23Lake County13.4-6.4 pts
25Conejos County13.3-3.3 pts
26Delta County13.2-5.5 pts
27Gunnison County13.1-3.5 pts
28Logan County13-2.1 pts
28Summit County13-1 pts
30Mesa County12.8-2.8 pts
31San Juan County12.7-0.9 pts
32Bent County12.6-2.3 pts
32Hinsdale County12.6-3.6 pts
32Las Animas County12.6-2.9 pts
32Sedgwick County12.6-3.1 pts
36Pitkin County12.1-2.3 pts
37Moffat County12-2.3 pts
37Washington County12-3.1 pts
39Huerfano County11.6-4.1 pts
39La Plata County11.6-4.2 pts
39San Miguel County11.6-2.4 pts
42Crowley County11.4-3.7 pts
42Fremont County11.4-2.7 pts
44Arapahoe County11.3-3.4 pts
44Pueblo County11.3-3 pts
46Chaffee County11.2-2.3 pts
47Mineral County11.1-1.3 pts
48Rio Blanco County10.9-2.8 pts
49Ouray County10.7-1.8 pts
50Lincoln County10.3-3.3 pts
51Weld County10.2-4.6 pts
52Grand County10-5.2 pts
53El Paso County9.9-2.5 pts
54Park County9.3-3.1 pts
55Routt County9-4 pts
56Teller County8.7-2.5 pts
57Boulder County8.4-3.2 pts
58Jefferson County8.2-2.7 pts
59Larimer County8.1-3.9 pts
60Elbert County8-1.6 pts
61Clear Creek County6.7-1.4 pts
62Broomfield County5.7-2.3 pts
63Gilpin County4.6-2.4 pts
64Douglas County4.1-1.8 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. 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. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

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, ages 18 to 64, 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, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Colorado by uninsured rate, ages 18 to 64 (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, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Colorado by uninsured rate, ages 18 to 64 (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-ages-18-64/colorado-counties?period=2015. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Colorado by uninsured rate, ages 18 to 64 (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-ages-18-64/colorado-counties?period=2015.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Colorado by uninsured rate, ages 18 to 64 (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-ages-18-64/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, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Colorado by uninsured rate, ages 18 to 64 (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-ages-18-64/colorado-counties?period=2015. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, 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, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Colorado by uninsured rate, ages 18 to 64 (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-ages-18-64/colorado-counties?period=2015
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/colorado-counties?period=2015.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, 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  - 
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in Colorado by uninsured rate, ages 18 to 64 (US model-based estimate) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_18_64","level":"province","within":"Colorado","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=uninsured_rate_18_64&level=province&within=Colorado&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Saguache County, with 22.7% in 2015, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Douglas County, with 4.1% 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, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Colorado: more rankings