Río Grande Municipio's 2026 population is estimated at 43,762, reflecting a -1.34% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Río Grande Municipio is the 17th largest county in Puerto Rico. The 2010 population was 54,295 and has grown -19.4% since 2010.
Data after 2023 is projected based on recent change
Overall: 44.7 years
Female: 46.8 years
Male: 42.2 years
There are 38,861 adults, (10,441 of whom are seniors) in Río Grande Municipio.
Female: 24,148 (52.4%)
Male: 21,903 (47.6%)
The racial composition of Río Grande Municipio includes 35.94% other race, 11.05% Black or African American, 7.25% White, and smaller percentages for Asian, Native American and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| Two or more races | 20,772 | 45.11% |
| Other race | 16,553 | 35.94% |
| Black or African American | 5,090 | 11.05% |
| White | 3,337 | 7.25% |
| Asian | 174 | 0.38% |
| Native American | 125 | 0.27% |
Río Grande Municipio 's average per capita income is $21,788. Household income levels show a median of $28,943. The poverty rate stands at 33.82%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $44,024 | - |
| Families | $36,367 | $43,856 |
| Households | $28,943 | $38,337 |
| Non Families | $16,547 | $22,733 |
Average Income
Median Household Income
Poverty Rate