Las Marías Municipio's 2026 population is estimated at 8,417, reflecting a -0.99% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Las Marías Municipio is the 75th largest county in Puerto Rico. The 2010 population was 9,869 and has grown -14.71% since 2010.
Data after 2023 is projected based on recent change
Overall: 44.9 years
Female: 46.3 years
Male: 44.2 years
There are 7,186 adults, (2,077 of whom are seniors) in Las Marías Municipio.
Female: 4,399 (50.3%)
Male: 4,345 (49.7%)
The racial composition of Las Marías Municipio includes 65.65% White, 23.96% other race, and smaller percentages for Black or African American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 5,740 | 65.65% |
| Other race | 2,095 | 23.96% |
| Two or more races | 659 | 7.54% |
| Black or African American | 250 | 2.86% |
Las Marías Municipio 's average per capita income is $15,950. Household income levels show a median of $16,314. The poverty rate stands at 57.82%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $24,703 | - |
| Families | $18,621 | $26,964 |
| Households | $16,314 | $23,906 |
| Non Families | $10,861 | $16,479 |
Average Income
Median Household Income
Poverty Rate