Data / Rankings / Population aged 65 and over / Counties in New Mexico

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

Catron County had the highest share of population aged 65 and over of 33 counties in 2023, at 42.9%. Lea County had the lowest, at 11.9%. The median was 22% and the figure for New Mexico was 20.2%. Source: the U.S. Census Bureau.

Highest42.9Catron County
Lowest11.9Lea County
Median2233 counties
New Mexico20.2History

All counties, 2023

CSVChart (SVG)

Catron CountyCatron County: 42.9 %42.9Harding CountyHarding County: 39.3 %39.3Sierra CountySierra County: 36.9 %36.9Lincoln CountyLincoln County: 33 %33Mora CountyMora County: 32.2 %32.2Grant CountyGrant County: 31.7 %31.7Taos CountyTaos County: 30.1 %30.1Colfax CountyColfax County: 28.9 %28.9Santa Fe CountySanta Fe County: 28.6 %28.6De Baca CountyDe Baca County: 28.2 %28.2Quay CountyQuay County: 27.7 %27.7San Miguel CountySan Miguel County: 24.7 %24.7Torrance CountyTorrance County: 23.9 %23.9Hidalgo CountyHidalgo County: 23.8 %23.8Rio Arriba CountyRio Arriba County: 23.2 %23.2Luna CountyLuna County: 22.4 %22.4Guadalupe CountyGuadalupe County: 22 %22Union CountyUnion County: 21.9 %21.9Socorro CountySocorro County: 21.7 %21.7Sandoval CountySandoval County: 21.2 %21.2Valencia CountyValencia County: 19.3 %19.3Bernalillo CountyBernalillo County: 19.3 %19.3Otero CountyOtero County: 19.2 %19.2Los Alamos CountyLos Alamos County: 19.1 %19.1Cibola CountyCibola County: 18.5 %18.5Doña Ana CountyDoña Ana County: 18.5 %18.5San Juan CountySan Juan County: 17.2 %17.2Chaves CountyChaves County: 16.9 %16.9Eddy CountyEddy County: 15.4 %15.4Roosevelt CountyRoosevelt County: 15.3 %15.3McKinley CountyMcKinley County: 15.1 %15.1Curry CountyCurry County: 14.1 %14.1Lea CountyLea County: 11.9 %11.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2023 (%)Change on 2022
1Catron County42.9+0.9 pts
2Harding County39.3-0.3 pts
3Sierra County36.9+0.5 pts
4Lincoln County33+1.2 pts
5Mora County32.2+0.6 pts
6Grant County31.7+0.9 pts
7Taos County30.1+0.8 pts
8Colfax County28.9+0.8 pts
9Santa Fe County28.6+0.8 pts
10De Baca County28.2-0.1 pts
11Quay County27.7+0.4 pts
12San Miguel County24.7+0.9 pts
13Torrance County23.9+0.6 pts
14Hidalgo County23.8+0.8 pts
15Rio Arriba County23.2+0.6 pts
16Luna County22.4+0.5 pts
17Guadalupe County22+0.7 pts
18Union County21.9+0.4 pts
19Socorro County21.7+0.9 pts
20Sandoval County21.2+0.4 pts
21Valencia County19.3+0.3 pts
22Bernalillo County19.3+0.5 pts
23Otero County19.2+0.3 pts
24Los Alamos County19.10 pts
25Cibola County18.5+0.5 pts
26Doña Ana County18.5+0.4 pts
27San Juan County17.2+0.5 pts
28Chaves County16.9+0.3 pts
29Eddy County15.4+0.3 pts
30Roosevelt County15.3+0.3 pts
31McKinley County15.1+0.7 pts
32Curry County14.1+0.3 pts
33Lea County11.9+0.1 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.

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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}
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Questions

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

Catron County, with 42.9% in 2023, according to the U.S. Census Bureau.

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

Lea County, with 11.9% in 2023.

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.

Population aged 65 and over: other rankings

Counties in New Mexico: more rankings