Share of the population by age and sex, five-year groups

Population of New Mexico, 2010–2025 · click to pick a year
Estimates up to 2019 are built on the 2010 Census, those from 2020 on the 2020 Census. A line that steps up or down between 2019 and 2020 reflects this re-basing, not a sudden change in population.

Year

-5 -1   2025  +1 +5

2,125,498 people lived in New Mexico on July 1, 2025: the 36th-largest population among the 50 states and the District of Columbia. The median age was 40.1 years (United States: 39.4); more residents are 65 or older (21.1%) than under 15 (16.6%): an ageing, top-heavy pyramid. There were 97.5 men for every 100 women. Since 2010 the population has grown by 2.9%. Source: U.S. Census Bureau, Population Estimates Program, Vintage 2025 estimates (resident population on July 1; public domain). Median age, shares, dependency ratios and rankings are calculated by PopulationPyramid.net from these estimates; the Census Bureau does not endorse this site.

Key indicators, 2025
Population
2,125,498
Rank by population
36th of 51
Median age
40.1
Men per 100 women
97.5
Under 15
16.6%
15–64
62.3%
65 and over
21.1%
Child dependency
26.7
Old-age dependency
33.9
Change since 2010
+2.9%
Dependency ratios count children under 15 or adults 65 and over per 100 residents aged 15 to 64.
Show the population by age group, 2025
AgeMenWomenTotalShare
0-453,99551,734105,7295.0%
5-960,65957,578118,2375.6%
10-1466,12663,672129,7986.1%
15-1973,89969,606143,5056.8%
20-2479,00172,480151,4817.1%
25-2970,27764,269134,5466.3%
30-3470,23167,438137,6696.5%
35-3969,86468,144138,0086.5%
40-4466,76566,861133,6266.3%
45-4959,12760,498119,6255.6%
50-5454,98058,648113,6285.3%
55-5956,13561,190117,3255.5%
60-6463,68070,388134,0686.3%
65-6963,30172,149135,4506.4%
70-7455,63864,834120,4725.7%
75-7943,85750,34794,2044.4%
80-8424,29430,03554,3292.6%
85+17,60026,19843,7982.1%
How New Mexico compares with similar-sized states, 2025
RankStateResidentsRelative
33 Arkansas 3,114,791
34 Kansas 2,977,220
35 Mississippi 2,954,160
36 New Mexico 2,125,498
37 Idaho 2,029,733
38 Nebraska 2,018,006
39 West Virginia 1,766,147
Frequently asked questions about New Mexico's population
What is the population of New Mexico?
New Mexico had an estimated 2,125,498 residents on July 1, 2025, according to the U.S. Census Bureau, Population Estimates Program. That ranks 36th among the 51 states and the District of Columbia.
What is the median age in New Mexico?
The median age in New Mexico was 40.1 years in 2025, the 19th oldest of the 51 states and DC. That is 0.7 years older than the national median of 39.4.
How many people in New Mexico are 65 or older?
About 448,253 residents of New Mexico (21.1%) were 65 or older in 2025, against 16.6% under 15 and 62.3% aged 15 to 64.
What does the population pyramid of New Mexico show?
In 2025, New Mexico: more residents are 65 or older (21.1%) than under 15 (16.6%): an ageing, top-heavy pyramid. There were 97.5 men for every 100 women.
How fast is the population of New Mexico changing?
The population of New Mexico grew by 2.9% between 2010 and 2025, and by -0.1% in the last year.
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