Data / Rankings / Population aged 18 to 64 / Counties in New Mexico

Counties in New Mexico by population aged 18 to 64

Guadalupe County had the highest population aged 18 to 64 of 33 counties in 2020, at 62%. Catron County had the lowest, at 46.2%. The median was 57.7% and the figure for New Mexico was 58.8%. Source: the U.S. Census Bureau.

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Highest62Guadalupe County
Lowest46.2Catron County
Median57.733 counties
New Mexico58.8History

Map of counties, 2020

Bernalillo County: 61.2 %Catron County: 46.2 %Chaves County: 57.7 %Cibola County: 59 %Colfax County: 55.1 %Curry County: 59.6 %De Baca County: 52.3 %Doña Ana County: 58.6 %Eddy County: 59.5 %Grant County: 52 %Guadalupe County: 62 %Harding County: 49.1 %Hidalgo County: 55.9 %Lea County: 59.5 %Lincoln County: 52.4 %Los Alamos County: 59.5 %Luna County: 53.1 %McKinley County: 59 %Mora County: 53.7 %Otero County: 58.7 %Quay County: 52 %Rio Arriba County: 57.3 %Roosevelt County: 60.7 %Sandoval County: 57 %San Juan County: 58 %San Miguel County: 58.9 %Santa Fe County: 56.9 %Sierra County: 48.5 %Socorro County: 59 %Taos County: 55.1 %Torrance County: 57.3 %Union County: 59.1 %Valencia County: 58 %
  • Under 52
  • 52 to 56
  • 56 to 58
  • 58 to 59
  • 59 to 60
  • 60 and over
%, 2020. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2020

Guadalupe County: 62 %Guadalupe County62Bernalillo County: 61.2 %Bernalillo County61.2Roosevelt County: 60.7 %Roosevelt County60.7Curry County: 59.6 %Curry County59.6Eddy County: 59.5 %Eddy County59.5Lea County: 59.5 %Lea County59.5Los Alamos County: 59.5 %Los Alamos County59.5Union County: 59.1 %Union County59.1Cibola County: 59 %Cibola County59McKinley County: 59 %McKinley County59Socorro County: 59 %Socorro County59San Miguel County: 58.9 %San Miguel County58.9Otero County: 58.7 %Otero County58.7Doña Ana County: 58.6 %Doña Ana County58.6San Juan County: 58 %San Juan County58Valencia County: 58 %Valencia County58Chaves County: 57.7 %Chaves County57.7Rio Arriba County: 57.3 %Rio Arriba County57.3Torrance County: 57.3 %Torrance County57.3Sandoval County: 57 %Sandoval County57Santa Fe County: 56.9 %Santa Fe County56.9Hidalgo County: 55.9 %Hidalgo County55.9Colfax County: 55.1 %Colfax County55.1Taos County: 55.1 %Taos County55.1Mora County: 53.7 %Mora County53.7Luna County: 53.1 %Luna County53.1Lincoln County: 52.4 %Lincoln County52.4De Baca County: 52.3 %De Baca County52.3Quay County: 52 %Quay County52Grant County: 52 %Grant County52Harding County: 49.1 %Harding County49.1Sierra County: 48.5 %Sierra County48.5Catron County: 46.2 %Catron County46.2Guadalupe County: 62 %Guadalupe County62Bernalillo County: 61.2 %Bernalillo County61.2Roosevelt County: 60.7 %Roosevelt County60.7Curry County: 59.6 %Curry County59.6Eddy County: 59.5 %Eddy County59.5Lea County: 59.5 %Lea County59.5Los Alamos County: 59.5 %Los Alamos County59.5Union County: 59.1 %Union County59.1Cibola County: 59 %Cibola County59McKinley County: 59 %McKinley County59Socorro County: 59 %Socorro County59San Miguel County: 58.9 %San Miguel County58.9Otero County: 58.7 %Otero County58.7Doña Ana County: 58.6 %Doña Ana County58.6San Juan County: 58 %San Juan County58Valencia County: 58 %Valencia County58Chaves County: 57.7 %Chaves County57.7Rio Arriba County: 57.3 %Rio Arriba County57.3Torrance County: 57.3 %Torrance County57.3Sandoval County: 57 %Sandoval County57Santa Fe County: 56.9 %Santa Fe County56.9Hidalgo County: 55.9 %Hidalgo County55.9Colfax County: 55.1 %Colfax County55.1Taos County: 55.1 %Taos County55.1Mora County: 53.7 %Mora County53.7Luna County: 53.1 %Luna County53.1Lincoln County: 52.4 %Lincoln County52.4De Baca County: 52.3 %De Baca County52.3Quay County: 52 %Quay County52Grant County: 52 %Grant County52Harding County: 49.1 %Harding County49.1Sierra County: 48.5 %Sierra County48.5Catron County: 46.2 %Catron County46.2
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2020 (%)Change on 2019
1Guadalupe County62+0.5 pts
2Bernalillo County61.2-0.3 pts
3Roosevelt County60.7-0.1 pts
4Curry County59.6-0.7 pts
5Eddy County59.5-0.1 pts
6Lea County59.5-0.3 pts
7Los Alamos County59.5+0.1 pts
8Union County59.1-0.5 pts
9Cibola County59-0.6 pts
10McKinley County59-0.2 pts
11Socorro County59-0.4 pts
12San Miguel County58.9-0.5 pts
13Otero County58.7-0.5 pts
14Doña Ana County58.6-0.3 pts
15San Juan County58-0.2 pts
16Valencia County58-0.3 pts
17Chaves County57.7-0.1 pts
18Rio Arriba County57.3-0.6 pts
18Torrance County57.3-0.8 pts
20Sandoval County57-0.4 pts
21Santa Fe County56.9-0.4 pts
22Hidalgo County55.9-0 pts
23Colfax County55.1-0.3 pts
24Taos County55.1-0.7 pts
25Mora County53.7-1 pts
26Luna County53.1-0.6 pts
27Lincoln County52.4-0.6 pts
28De Baca County52.3+0.7 pts
29Quay County52-0.1 pts
30Grant County52-0.6 pts
31Harding County49.1-2.2 pts
32Sierra County48.5-0.2 pts
33Catron County46.20 pts

Other periods

About this ranking

Residents aged 18 to 64 as a percentage of total population on 1 July. United States: Census Bureau county population estimates by age; states and the nation are sums of their counties.

Not comparable with working-age shares for ages 15 to 64 used in EU and World Bank statistics.

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: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. 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). Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties (Counties in New Mexico by population aged 18 to 64, 2020) [Data set]. Retrieved October 12, 2026, from https://www.census.gov/programs-surveys/popest/data/data-sets.html

MLA 9

Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in New Mexico by population aged 18 to 64, 2020. U.S. Census Bureau, 25 June 2026, https://www.census.gov/programs-surveys/popest/data/data-sets.html. Invokely, https://invokely.ai/rankings/population-18-64/new-mexico-counties?period=2020. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Counties in New Mexico by population aged 18 to 64, 2020. Dataset. Accessed October 12, 2026. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Also distributed by Invokely, https://invokely.ai/rankings/population-18-64/new-mexico-counties?period=2020.

Harvard

U.S. Census Bureau (2026) Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties, Counties in New Mexico by population aged 18 to 64, 2020 [Dataset]. Available at: https://www.census.gov/programs-surveys/popest/data/data-sets.html, via Invokely: https://invokely.ai/rankings/population-18-64/new-mexico-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_new_mexico_2020,
  author = {{U.S. Census Bureau}},
  title = {{Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in New Mexico by population aged 18 to 64, 2020}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www.census.gov/programs-surveys/popest/data/data-sets.html},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/population-18-64/new-mexico-counties?period=2020. Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties: Counties in New Mexico by population aged 18 to 64, 2020
PY  - 2026
DA  - 2026/06/25
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www.census.gov/programs-surveys/popest/data/data-sets.html
L2  - https://invokely.ai/rankings/population-18-64/new-mexico-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/population-18-64/new-mexico-counties?period=2020.
N1  - Publisher attribution: U.S. Census Bureau. Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. https://www.census.gov/programs-surveys/popest/data/data-sets.html. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest population aged 18 to 64?

Guadalupe County, with 62% in 2020, according to the U.S. Census Bureau.

Which county has the lowest population aged 18 to 64?

Catron County, with 46.2% 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, Population Estimates Program, county population by age and sex: residents aged 18 to 64 as a percentage of the total on 1 July, 2010 to 2019 from the 2010 to 2020 intercensal file and 2020 onwards from the latest vintage; states and the nation summed from counties. Retrieved 2026-10-12.

Population aged 18 to 64: other rankings

Counties in New Mexico: more rankings