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

McKinley County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 33 counties in 2021, at 23.2%. Los Alamos County had the lowest, at 3.2%. The median was 14.6% and the figure for New Mexico was 14.9%. Source: the U.S. Census Bureau.

Highest23.2McKinley County

Lowest3.2Los Alamos County

Median14.633 counties

New Mexico14.9History

Map of counties, 2021

Under 12
12 to 13
13 to 15
15 to 16
16 to 18
18 and over

%, 2021. 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, 2021

%. 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

Rank	Counties	2021 (%)	Change on 2020
1	McKinley County	23.2	+0.6 pts
2	Lea County	19.9	+2.1 pts
3	Luna County	19.5	+0.8 pts
4	San Juan County	18.4	+0.9 pts
5	Doña Ana County	18.3	+1.3 pts
6	Chaves County	17.9	+2.5 pts
6	Roosevelt County	17.9	-0.2 pts
8	De Baca County	17.2	+1.2 pts
9	Rio Arriba County	15.8	+2.7 pts
10	Curry County	15.7	+0.6 pts
10	Lincoln County	15.7	-0.9 pts
12	Hidalgo County	15.6	+1.6 pts
12	Torrance County	15.6	+3.7 pts
14	Valencia County	15.4	+1.5 pts
15	Union County	15.2	+0.3 pts
16	Cibola County	14.9	-0.6 pts
17	Socorro County	14.6	-0.1 pts
18	Santa Fe County	14.3	-0.6 pts
19	Taos County	14	+0.4 pts
20	Eddy County	13.7	0 pts
21	Quay County	13.6	+0.7 pts
22	Bernalillo County	13.5	+1.1 pts
23	Otero County	13.3	-2.9 pts
24	Sierra County	12.9	+0.3 pts
25	Colfax County	12.2	+1.4 pts
25	San Miguel County	12.2	+2.2 pts
27	Harding County	11.9	0 pts
28	Grant County	11.5	+1.2 pts
29	Catron County	11.4	+4.5 pts
30	Sandoval County	10.7	-1.3 pts
31	Mora County	10	+0.8 pts
32	Guadalupe County	9.4	+1.1 pts
33	Los Alamos County	3.2	-0.2 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-2021-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 New Mexico by uninsured rate, ages 18 to 64 (US model-based estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-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 New Mexico by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-mexico-counties?period=2021. 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 New Mexico by uninsured rate, ages 18 to 64 (US model-based estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-mexico-counties?period=2021.

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 New Mexico by uninsured rate, ages 18 to 64 (US model-based estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-mexico-counties?period=2021 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_new_mexico_2021,
  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 New Mexico by uninsured rate, ages 18 to 64 (US model-based estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-mexico-counties?period=2021. 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-2021-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 New Mexico by uninsured rate, ages 18 to 64 (US model-based estimate), 2021
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-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-mexico-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/new-mexico-counties?period=2021.
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-2021-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)?

McKinley County, with 23.2% in 2021, according to the U.S. Census Bureau.

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

Los Alamos County, with 3.2% in 2021.

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.