Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in Arizona

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

La Paz County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 15 counties in 2020, at 22.5%. Greenlee County had the lowest, at 10.7%. The median was 16.2% and the figure for Arizona was 15.2%. Source: the U.S. Census Bureau.

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Highest22.5La Paz County
Lowest10.7Greenlee County
Median16.215 counties
Arizona15.2History

Map of counties, 2020

Apache County: 21.7 %Cochise County: 14.1 %Coconino County: 17.2 %Gila County: 15.3 %Graham County: 16.9 %Greenlee County: 10.7 %La Paz County: 22.5 %Maricopa County: 15.1 %Mohave County: 16.2 %Navajo County: 19.5 %Pima County: 13.7 %Pinal County: 14.6 %Santa Cruz County: 22.5 %Yavapai County: 15 %Yuma County: 20 %
  • Under 15
  • 15 to 17
  • 17 to 20
  • 20 and over
%, 2020. 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.

All counties, 2020

La Paz County: 22.5 %La Paz County22.5Santa Cruz County: 22.5 %Santa Cruz County22.5Apache County: 21.7 %Apache County21.7Yuma County: 20 %Yuma County20Navajo County: 19.5 %Navajo County19.5Coconino County: 17.2 %Coconino County17.2Graham County: 16.9 %Graham County16.9Mohave County: 16.2 %Mohave County16.2Gila County: 15.3 %Gila County15.3Maricopa County: 15.1 %Maricopa County15.1Yavapai County: 15 %Yavapai County15Pinal County: 14.6 %Pinal County14.6Cochise County: 14.1 %Cochise County14.1Pima County: 13.7 %Pima County13.7Greenlee County: 10.7 %Greenlee County10.7La Paz County: 22.5 %La Paz County22.5Santa Cruz County: 22.5 %Santa Cruz County22.5Apache County: 21.7 %Apache County21.7Yuma County: 20 %Yuma County20Navajo County: 19.5 %Navajo County19.5Coconino County: 17.2 %Coconino County17.2Graham County: 16.9 %Graham County16.9Mohave County: 16.2 %Mohave County16.2Gila County: 15.3 %Gila County15.3Maricopa County: 15.1 %Maricopa County15.1Yavapai County: 15 %Yavapai County15Pinal County: 14.6 %Pinal County14.6Cochise County: 14.1 %Cochise County14.1Pima County: 13.7 %Pima County13.7Greenlee County: 10.7 %Greenlee County10.7
%. 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

RankCounties2020 (%)Change on 2019
1La Paz County22.5-1.8 pts
1Santa Cruz County22.5+2.3 pts
3Apache County21.7-2.6 pts
4Yuma County20-1.4 pts
5Navajo County19.5-0.4 pts
6Coconino County17.2+0.7 pts
7Graham County16.9+2.7 pts
8Mohave County16.2+1 pts
9Gila County15.3-1.8 pts
10Maricopa County15.1+0.1 pts
11Yavapai County15-1.3 pts
12Pinal County14.6+0.4 pts
13Cochise County14.1+1.4 pts
14Pima County13.7-1.6 pts
15Greenlee County10.7+2.2 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-2020-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 Arizona by uninsured rate, ages 18 to 64 (US model-based estimate), 2020) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-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 Arizona by uninsured rate, ages 18 to 64 (US model-based estimate), 2020. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/arizona-counties?period=2020. 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 Arizona by uninsured rate, ages 18 to 64 (US model-based estimate), 2020. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/arizona-counties?period=2020.

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 Arizona by uninsured rate, ages 18 to 64 (US model-based estimate), 2020 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/arizona-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_arizona_by_2020,
  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 Arizona by uninsured rate, ages 18 to 64 (US model-based estimate), 2020}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/arizona-counties?period=2020. 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-2020-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 Arizona by uninsured rate, ages 18 to 64 (US model-based estimate), 2020
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-2020-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/arizona-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/arizona-counties?period=2020.
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-2020-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

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

La Paz County, with 22.5% in 2020, according to the U.S. Census Bureau.

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

Greenlee County, with 10.7% in 2020.

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 Arizona: more rankings