| Place Name | San Ildefonso |
| Place Type | Barrio |
| ZIP Code(s) | 00751 00757 00769 |
| County | Coamo |
| Area Code(s) | 787,939 |
| Timezone | Atlantic Standard Time (AST) |
| Population (2021) | 10,983 |
| Majority Ethnicity | Hispanic 0.05% |
| Metro/Micro Stats Area | Coamo, PR |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 24.67% |
| African American | 15.33% |
| Hispanic | 0.05% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 59.94% |