San Miguel County's 2026 population is estimated at 26,018, reflecting a -0.78% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). San Miguel County is the 18th largest county in New Mexico. The 2010 population was 29,392 and has grown -11.48% since 2010.
Data after 2023 is projected based on recent change
Overall: 47.2 years
Female: 47.9 years
Male: 45.7 years
There are 22,322 adults, (6,868 of whom are seniors) in San Miguel County.
Female: 13,781 (51.3%)
Male: 13,069 (48.7%)
The racial composition of San Miguel County includes 40.7% White, 16.14% other race, and smaller percentages for Native American, Black or African American, Asian and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 10,927 | 40.7% |
| Two or more races | 10,410 | 38.77% |
| Other race | 4,333 | 16.14% |
| Native American | 620 | 2.31% |
| Black or African American | 463 | 1.72% |
| Asian | 97 | 0.36% |
San Miguel County 's average per capita income is $37,549. Household income levels show a median of $49,431. The poverty rate stands at 24.41%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $88,418 | - |
| Families | $70,433 | $82,618 |
| Households | $49,431 | $65,851 |
| Non Families | $27,220 | $40,869 |
Average Income
Median Household Income
Poverty Rate