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
Among US counties, San Miguel County stands out first on household income: a median of $47,400, below the US median of $78,538. With 27,036 residents, San Miguel County is a county in New Mexico. It ranks #17 among counties in New Mexico by population.
Incomes run on the lower side: a median household income of $47,400, below the US median of $78,538. Roughly 15.5% of residents fall below the poverty line, above the national 12.4%. Homes carry a median value of $177,600, with typical rent around $774.
Degree attainment is mid-range for US counties: 26.2% of adults hold a four-year degree, below the national 35.0%. About 12.0% of workers primarily work from home, below the national 14.0%, and the average commute runs about 21 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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Part of New Mexico
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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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Statewide data for New Mexico
Population, race, income, age, and trends across New Mexico
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.