San Juan County's 2026 population is estimated at 120,637, reflecting a -0.07% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). San Juan County is the 5th largest county in New Mexico. The 2010 population was 130,209 and has grown -7.35% since 2010.
Data after 2023 is projected based on recent change
Overall: 38.3 years
Female: 39.3 years
Male: 37.4 years
There are 90,777 adults, (20,461 of whom are seniors) in San Juan County.
Female: 61,314 (50.7%)
Male: 59,628 (49.3%)
The racial composition of San Juan County includes 39.92% White, 39.63% Native American, 8.64% other race, and smaller percentages for Asian, Black or African American, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 48,274 | 39.92% |
| Native American | 47,935 | 39.63% |
| Two or more races | 12,528 | 10.36% |
| Other race | 10,447 | 8.64% |
| Asian | 962 | 0.8% |
| Black or African American | 759 | 0.63% |
| Native Hawaiian or Pacific Islander | 37 | 0.03% |
San Juan County 's average per capita income is $40,047. Household income levels show a median of $55,872. The poverty rate stands at 23.08%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $88,031 | $107,789 |
| Families | $68,290 | $87,019 |
| Households | $55,872 | $76,826 |
| Non Families | $34,181 | $48,443 |
Average Income
Median Household Income
Poverty Rate