| Name | Delaware County |
| State | Pennsylvania |
| FIPS Code | 42045 |
| County Seat | Media |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2024) | 580,538 |
| Population Growth Rate(2020-2024) | 0.61% |
| Majority Ethnicity | White 66.05% |
| Public School Majority Ethnicity | White 49% |
| Partisan Voting Index | Democratic:+12 |
| Unemployment Rate (May 2026) | 4.4% |
| Sales Tax Rate (2025) | 6% |
| Area Code(s) | 484 / 610 / 835 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 66.05% |
| African American | 22.57% |
| Hispanic | 4.93% |
| Asian | 6.28% |
| Native American | 0.12% |
| Hawaiin/Pacific Islander | 0.06% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 48.98% |
| African American | 29.97% |
| Hispanic | 7.06% |
| Asian | 8.45% |
| Native American | 0.16% |
| Hawaiin/Pacific Islander | 0.06% |