San Miguel County, New Mexico Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 17th-largest in New Mexico
The population of San Miguel County, New Mexico is 27,036 as of the 2023 American Community Survey, making it the 17th-largest county in New Mexico. The median household income is $47,400, the median home value is $177,600, and the median age is 46.8.
The population of San Miguel County has declined 10.1% since 2010 (29,392 → 26,428), a -0.76% annualized rate.
27,036
Population
-0.76%
Annual growth
6
People / sq mi
$47,400
Median Income
$177,600
Median Home Value
San Miguel County covers 4,722 sq mi of land at 5.7 people per square mile.
About San Miguel County, NM
San Miguel County is a county in New Mexico with a population of 27,036. It ranks #17 among counties in New Mexico by population. The median age is 46.8, older than the national median. The population is 49.0% male and 51.0% female.
The median household income in San Miguel County is $47,400, below the US median of $74,580. 15.5% of residents live below the federal poverty level. Home values sit at a median of $177,600, with monthly rent averaging $774. The homeownership rate of 73.3% is higher than the national rate of 64.8%.
Educational attainment in San Miguel County reflects 26.2% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 12.0% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 21.2 minutes each way.
San Miguel County Population History (2010-2024)
The county of San Miguel County had a population of 29,392 in 2010 and 26,428 in 2024, a -10.1% growth over 14 years. The peak was 29,392 in 2010. Average annual growth rate: -0.76%.
26,428
Population (2024)
29,392
Population (2010)
29,392
Peak (2010)
-0.76%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 29,392 |
| 2011 | 29,352 |
| 2012 | 29,094 |
| 2013 | 28,825 |
| 2014 | 28,501 |
| 2015 | 28,223 |
| 2016 | 27,999 |
| 2017 | 27,737 |
| 2018 | 27,512 |
| 2019 | 27,337 |
| 2020 | 27,128 |
| 2021 | 27,162 |
| 2022 | 26,899 |
| 2023 | 26,633 |
| 2024 | 26,428 |
Race & Ethnicity
| White | 50.4% |
| Black or African American | 1.6% |
| Asian | 1.2% |
| Hispanic or Latino (any race) | 5.5% |
| Two or More Races | 0.0% |
Age & Sex
46.8
Median Age
51.0%
Female
49.0%
Male
24.4%
Age 65+
Age Distribution
Children (under 15): 13.8% · Seniors (65+): 24.4%
Income & Poverty
| Median household income | $47,400$-14,725 vs state |
| Mean household income | $62,393 |
| Per-capita income | $28,140 |
| Poverty rate | 15.5%+1.8% vs state |
| Unemployment rate | 2.7% |
| Employment-to-population | 47.9% |
Top Industries by Employment
The largest employment sector in San Miguel County is professional & business services, accounting for 39.2% of workers.
How residents commute
0.1%
Drive alone
3.8%
Carpool
72.6%
Public transit
12.0%
Work from home
21.2 min
Avg commute
Housing
$177,600$-54,600 vs state
Median home value
$774
Median rent
73.3%
Homeownership rate
14,837
Total housing units
80.4%
Occupied
19.6%
Vacant
26.7%
Renter-occupied
Social & access
92.4%
With health insurance
86.3%
With broadband internet
26.6%
Foreign-born
7.2%
Veterans (18+)
24.5%
With a disability
52.0%
Speak language other than English at home
Education
85.7%
High School+
26.2%
Bachelor's+
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County rankings
Frequently Asked Questions
San Miguel County, New Mexico has a population of 27,036 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 17th-largest county in New Mexico. Population density is 6 people per square mile.
The population of San Miguel County has declined 10.1% since 2010 (29,392 → 26,428), a -0.76% annualized rate.
The median household income in San Miguel County, New Mexico is $47,400, with mean (average) household income of $62,393 and per-capita income of $28,140. 15.5% of residents live below the federal poverty level.
In San Miguel County, the largest racial and ethnic groups are White (50.4%), Hispanic or Latino (5.5%), Black or African American (1.6%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in San Miguel County, New Mexico is 46.8 years. Residents are 51.0% female and 49.0% male.
The median home value in San Miguel County is $177,600 and median monthly rent is $774. 73.3% of occupied housing units are owner-occupied. The county has 14,837 total housing units, 19.6% of which are vacant.
The largest employment sector in San Miguel County, New Mexico is professional, scientific, and management services, employing 39.2% of workers. The unemployment rate is 2.7%.
Albuquerque is among the largest cities associated with San Miguel County, New Mexico, with a population of 562,488.
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.