San Juan County, New Mexico Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 5th-largest in New Mexico
The population of San Juan County, New Mexico is 121,178 as of the 2023 American Community Survey, making it the 5th-largest county in New Mexico. The median household income is $53,020, the median home value is $185,100, and the median age is 38.0.
The population of San Juan County has declined 7.2% since 2010 (130,209 → 120,817), a -0.53% annualized rate.
121,178
Population
-0.53%
Annual growth
22
People / sq mi
$53,020
Median Income
$185,100
Median Home Value
San Juan County covers 5,517 sq mi of land at 22.0 people per square mile.
About San Juan County, NM
The poverty rate is what most separates San Juan County from the typical county: 17.6% of residents live below the federal poverty line, against 12.4% nationally. San Juan County is a county in New Mexico with a population of 121,178. That makes it one of the ten largest counties in New Mexico in the country, at #5 by population.
The typical household earns $53,020, below the US median of $78,538. Poverty sits at 17.6%, above the national 12.4%. Homes carry a median value of $185,100, with typical rent around $917.
College attainment is 16.6%, below the national 35.0%. Just 5.6% of workers are home-based, below the national 14.0%, and the average commute runs about 24 minutes each way.
The elevated poverty rate is the context for the rest of the profile in San Juan County: it pulls on median income, housing tenure, and the share of residents with a college degree.
San Juan County Population History (2010-2024)
The county of San Juan County had a population of 130,209 in 2010 and 120,817 in 2024, a -7.2% growth over 14 years. The peak was 130,209 in 2010. Average annual growth rate: -0.53%.
120,817
Population (2024)
130,209
Population (2010)
130,209
Peak (2010)
-0.53%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 130,209 |
| 2011 | 129,732 |
| 2012 | 129,792 |
| 2013 | 129,509 |
| 2014 | 129,143 |
| 2015 | 128,324 |
| 2016 | 128,011 |
| 2017 | 127,039 |
| 2018 | 125,652 |
| 2019 | 124,027 |
| 2020 | 121,387 |
| 2021 | 121,019 |
| 2022 | 120,580 |
| 2023 | 120,907 |
| 2024 | 120,817 |
Race & Ethnicity
| White | 42.6% |
| Black or African American | 0.7% |
| Asian | 37.5% |
| Hispanic or Latino (any race) | 43.0% |
| Two or More Races | 0.0% |
Age & Sex
38.0
Median Age
50.6%
Female
49.4%
Male
16.2%
Age 65+
Age Distribution
Children (under 15): 20.6% · Seniors (65+): 16.2%
Income & Poverty
| Median household income | $53,020$-9,105 vs state |
| Mean household income | $74,068 |
| Per-capita income | $26,583 |
| Poverty rate | 17.6%+3.9% vs state |
| Unemployment rate | 4.1% |
| Employment-to-population | 48.9% |
Top Industries by Employment
The largest employment sector in San Juan County is professional & business services, accounting for 27.2% of workers.
How residents commute
0.2%
Drive alone
2.5%
Carpool
85.2%
Public transit
5.6%
Work from home
23.8 min
Avg commute
Housing
$185,100$-47,100 vs state
Median home value
$917
Median rent
70.2%
Homeownership rate
48,085
Total housing units
85.4%
Occupied
14.6%
Vacant
29.8%
Renter-occupied
Social & access
87.5%
With health insurance
90.1%
With broadband internet
34.8%
Foreign-born
6.4%
Veterans (18+)
15.7%
With a disability
69.7%
Speak language other than English at home
Education
86.4%
High School+
16.6%
Bachelor's+
Largest cities in New Mexico
Other counties in New Mexico
Part of New Mexico
Metro areas in New Mexico
County rankings
Frequently Asked Questions
San Juan County, New Mexico has a population of 121,178 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 5th-largest county in New Mexico. Population density is 22 people per square mile.
The population of San Juan County has declined 7.2% since 2010 (130,209 → 120,817), a -0.53% annualized rate.
The median household income in San Juan County, New Mexico is $53,020, with mean (average) household income of $74,068 and per-capita income of $26,583. 17.6% of residents live below the federal poverty level.
In San Juan County, the largest racial and ethnic groups are Hispanic or Latino (43.0%), White (42.6%), Asian (37.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in San Juan County, New Mexico is 38.0 years. Residents are 50.6% female and 49.4% male.
The median home value in San Juan County is $185,100 and median monthly rent is $917. 70.2% of occupied housing units are owner-occupied. The county has 48,085 total housing units, 14.6% of which are vacant.
The largest employment sector in San Juan County, New Mexico is professional, scientific, and management services, employing 27.2% of workers. The unemployment rate is 4.1%.
Albuquerque is among the largest cities associated with San Juan County, New Mexico, with a population of 562,488.
More from New Mexico
Population 674,357
Population 221,665
Population 155,175
Population 151,538
Full rankings of New Mexico counties
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.