Counties in New Mexico by share of population aged 65 and over

Name: Counties in New Mexico by share of population aged 65 and over, 2021
Creator: U.S. Census Bureau
License: Public domain (US federal government work, citation requested)

Catron County had the highest share of population aged 65 and over of 33 counties in 2021, at 42.6%. Lea County had the lowest, at 11.4%. The median was 20.9% and the figure for New Mexico was 19.1%. Source: the U.S. Census Bureau.

Highest42.6Catron County

Lowest11.4Lea County

Median20.933 counties

New Mexico19.1History

All counties, 2021

CSV Chart (SVG)

%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

Rank	Counties	2021 (%)	Change on 2020
1	Catron County	42.6	-0.6 pts
2	Harding County	39.5	+1.6 pts
3	Sierra County	36.2	+0.4 pts
4	Lincoln County	31	+1 pts
5	Mora County	30.4	+1.1 pts
6	Grant County	30	+1.1 pts
7	De Baca County	28.7	+0.6 pts
8	Taos County	28.4	+0.8 pts
9	Colfax County	27.3	+0.5 pts
10	Santa Fe County	27	+1 pts
11	Quay County	26.8	+0.6 pts
12	San Miguel County	23	+0.9 pts
13	Torrance County	22.7	+0.9 pts
14	Hidalgo County	22.3	+0.4 pts
15	Rio Arriba County	21.7	+0.7 pts
16	Luna County	21.7	0 pts
17	Union County	20.9	+0.1 pts
18	Sandoval County	20.2	+0.5 pts
19	Socorro County	20.1	+0.7 pts
20	Guadalupe County	20	+0.5 pts
21	Los Alamos County	18.8	+0.6 pts
22	Valencia County	18.7	+0.3 pts
23	Otero County	18.5	+0.4 pts
24	Bernalillo County	18.2	+0.6 pts
25	Doña Ana County	17.7	+0.4 pts
26	Cibola County	17.5	-0 pts
27	Chaves County	16.2	+0.3 pts
28	San Juan County	16.2	+0.5 pts
29	Roosevelt County	14.8	+0.2 pts
30	Eddy County	14.7	+0.5 pts
31	McKinley County	13.8	+0.4 pts
32	Curry County	13.5	+0.4 pts
33	Lea County	11.4	+0.3 pts

Other periods

About this ranking

Residents aged 65 or over as a percentage of total population. Spain: 1 January, INE annual census. United States: 1 July, Census Bureau population estimates. World Bank figures for other countries and the World refer to mid-year.

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. Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/counties/asrh/cc-est2025-agesex-all.csv. Retrieved 2026-10-09.

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 New Mexico by share of population aged 65 and over using official data, and cite the source.

rank_places {"indicator":"population_65_plus_share","level":"province","within":"New Mexico","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=population_65_plus_share&level=province&within=New%20Mexico&limit=10

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Questions

Which county has the highest share of population aged 65 and over?

Catron County, with 42.6% in 2021, according to the U.S. Census Bureau.

Which county has the lowest share of population aged 65 and over?

Lea County, with 11.4% 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, Population Estimates Program, county population by age and sex (cc-est agesex): residents aged 65 and over as a percentage of the total, 1 July; states and the nation summed from counties. Retrieved 2026-10-09.