Census-designated place · New Mexico
South River, New Mexico
South River, census-designated place, in San Juan County, New Mexico. South River had 2,011 residents in the 2020 Census, a full count; the ACS 2020-2024 5-year estimates put it at 1,810 (±405). GEOID 3574275.
Residents, 2020 Census
2,011
Census count or controlled total
ACS 2020-2024 estimate: 1,810 ±405
Median household income
$68,668
±$17,973 (90% margin)
New Mexico: $64,059
Median home value
$260,100
±$101,403 (90% margin)
New Mexico: $248,100
Median gross rent
not published
New Mexico: $1,067
Where is South River and what county is it in?
South River is a census-designated place: an unincorporated community the Census Bureau draws for counting, with no city government of its own, in San Juan County, New Mexico. It covers 8.5 square miles of land, 236 residents per square mile in 2020.
South River is in the Farmington, NM metropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in South River, and is it growing?
The 2020 Census counted 2,011 residents in South River, a full count rather than a sample. The 2020-2024 American Community Survey, a sample, estimates 1,810 (±405).
The Census Bureau publishes yearly population estimates for incorporated places only; South River is a census-designated place, so its figures come from the ACS and the 2020 Census.
| Measure | South River | San Juan County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,810 ±405 | 120,942 | – |
| Households | 717 ±162 | 41,732 | – |
| Average household size | 2.52 ±0.31 | 2.86 | – |
| Housing units | 817 ±168 | 48,255 | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in South River?
The median resident of South River is 49.3 years old; 14.1% are under 18 and 23.6% are 65 or older. The largest group is non-Hispanic white residents at 65.0%, then Hispanic or Latino residents (of any race) at 16.3%.
| Measure | South River | San Juan County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 49.3 ±7.1 | 38.3 | – |
| Under 18 years | 14.1% ±5.9 pts | 24.9% | – |
| 65 years and over | 23.6% ±6.4 pts | 16.9% | – |
| Male | 52.5% ±5.8 pts | 49.3% | – |
| Hispanic or Latino (any race) | 16.3% ±8.1 pts | 19.8% | – |
| White alone, not Hispanic | 65.0% ±12.0 pts | 36.2% | – |
| Black or African American alone, not Hispanic | 13.0% ±12.1 pts | 0.6% | – |
| Asian alone, not Hispanic | 0.0% ±2.3 pts | 0.8% | – |
| American Indian and Alaska Native alone, not Hispanic | 5.0% ±6.0 pts | 38.4% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±2.3 pts | 0.0% | – |
| Two or more races, not Hispanic | 0.7% ±0.9 pts | 4.0% | – |
| Some other race alone, not Hispanic | 0.0% ±2.3 pts | 0.2% | – |
| Born outside the United States | 1.2% ±1.5 pts | 3.1% | – |
| Speak a language other than English at home (age 5+) | 7.5% ±4.9 pts | 27.9% | – |
| Civilian veterans (age 18+) | 7.7% ±3.9 pts | 6.2% | – |
| With a disability | 15.6% ±4.6 pts | 16.2% | – |
| No health insurance coverage | 10.7% ±5.7 pts | 12.9% | – |
| High school graduate or higher (age 25+) | 90.0% ±4.4 pts | 86.9% | – |
| Bachelor's degree or higher (age 25+) | 16.3% ±8.1 pts | 18.3% | – |
| Graduate or professional degree (age 25+) | 7.9% ±7.2 pts | 6.9% | – |
| Lived in the same house a year earlier | 82.8% ±8.5 pts | 89.4% | – |
| Moved from another state in the past year | 8.1% ±7.2 pts | 2.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in South River earn?
Half of South River's 717 households earn less than $68,668 a year (±$17,973), against $55,872 in San Juan County and $64,059 in New Mexico. 13.7% of residents live below the poverty line.
| Measure | South River | San Juan County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $68,668 ±$17,973 | $55,872 | – |
| Mean household income | $92,110 ±$18,898 | $76,826 | – |
| Per capita income | $36,361 ±$7,478 | $28,099 | – |
| People below the poverty line | 13.7% ±7.6 pts | 23.1% | – |
| Children under 18 below the poverty line | 15.1% ±20.6 pts | 30.2% | – |
| Households receiving SNAP | 3.9% ±4.6 pts | 23.1% | – |
| Households with a computer | 98.0% ±2.1 pts | 91.8% | – |
| Households with a broadband subscription | 78.5% ±14.1 pts | 72.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in South River?
Owners occupy 88.8% of South River's occupied homes and renters 11.2%. The median owner-occupied home is valued at $260,100 by its owner (±$101,403).
| Measure | South River | San Juan County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $260,100 ±$101,403 | $193,800 | – |
| Renters paying 35% or more of income on rent | 0.0% ±47.0 pts | 35.2% | – |
| Median monthly owner costs, with a mortgage | $1,700 ±$295 | $1,499 | – |
| Owner-occupied homes | 88.8% ±8.0 pts | 71.2% | – |
| Renter-occupied homes | 11.2% ±8.0 pts | 28.8% | – |
| Housing units | 817 ±168 | 48,255 | – |
| Homeowner vacancy rate | 0.6% ±1.0 pts | 1.8% | – |
| Rental vacancy rate | 0.0% ±37.9 pts | 5.4% | – |
| Single-family detached homes | 52.1% ±10.7 pts | 56.7% | – |
| Mobile homes | 46.8% ±10.7 pts | 30.1% | – |
| Built 2020 or later | 0.0% ±5.1 pts | 1.0% | – |
| Built 2010 to 2019 | 13.1% ±9.8 pts | 7.1% | – |
| Built 1939 or earlier | 1.2% ±1.1 pts | 1.9% | – |
| Households with no vehicle | 1.4% ±1.7 pts | 6.7% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in South River work and get to work?
94.1% of South River's workers drive alone. The average trip to work takes 32.9 minutes.
| Measure | South River | San Juan County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 61.9% ±8.2 pts | 53.1% | – |
| Unemployment rate | 4.6% ±3.6 pts | 7.3% | – |
| Drove alone to work | 94.1% ±6.6 pts | 83.4% | – |
| Carpooled | 0.6% ±1.0 pts | 7.0% | – |
| Public transportation | 0.0% ±4.9 pts | 0.2% | – |
| Walked | 0.4% ±0.6 pts | 2.6% | – |
| Worked from home | 5.0% ±6.4 pts | 6.3% | – |
| Mean travel time to work | 32.9 min ±6.8 | 24.2 min | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in South River?
1 census tract lies mostly in South River, and 4 more reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 6.14San Juan County | 2,379 | $62,000 |
| Tract 6.15San Juan County | 2,586 | $71,944 |
| Tract 6.09San Juan County | 1,360 | $50,031 |
| Tract 2.04San Juan County | 2,740 | $67,679 |
| Tract 6.12San Juan County | 2,384 | $45,561 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in South River) · Census block assignment files
How does South River compare with other places in New Mexico?
South River ranks 46th of 143 places in New Mexico with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population (ACS 2020-2024) | 102nd | 153 |
| Residents per square mile | 115th | 155 |
| Median household income | 46th | 143 |
| Per capita income | 50th | 154 |
| Median home value | 48th | 138 |
| Poverty rate | 89th | 109 |
| Bachelor's degree or higher | 89th | 128 |
| Median age | 38th | 154 |
| Owner-occupied share | 38th | 150 |
| Travel time to work | 13th | 150 |
South River's figures with every place in New Mexico (CSV)
Every place in New Mexico, sortable · Compare South River with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for South River?
24 of the 56 figures for South River on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for South River are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.