Isabela Municipio's 2026 population is estimated at 42,160, reflecting a -0.5% growth rate over the past year (World Population Review estimate based on U.S. Census Bureau data). Isabela Municipio is the 18th largest county in Puerto Rico. The 2010 population was 45,654 and has grown -7.65% since 2010.
Data after 2023 is projected based on recent change
Overall: 45.1 years
Female: 46.5 years
Male: 42.8 years
There are 36,281 adults, (9,615 of whom are seniors) in Isabela Municipio.
Female: 22,070 (51.5%)
Male: 20,820 (48.5%)
The racial composition of Isabela Municipio includes 46.83% White, 28.39% other race, 5.71% Black or African American, and smaller percentages for Native American, Asian, Native Hawaiian or Pacific Islander and multiracial populations.
| Race | Population ↓ | Percentage (of total) |
|---|---|---|
| White | 20,086 | 46.83% |
| Other race | 12,176 | 28.39% |
| Two or more races | 8,077 | 18.83% |
| Black or African American | 2,450 | 5.71% |
| Native American | 36 | 0.08% |
| Asian | 36 | 0.08% |
| Native Hawaiian or Pacific Islander | 29 | 0.07% |
Isabela Municipio 's average per capita income is $22,400. Household income levels show a median of $23,266. The poverty rate stands at 43.59%.
| Name | Median ↓ | Mean |
|---|---|---|
| Married Families | $38,574 | - |
| Families | $30,032 | $37,983 |
| Households | $23,266 | $32,293 |
| Non Families | $13,134 | $17,820 |
Average Income
Median Household Income
Poverty Rate