| Name | New Castle County |
| State | Delaware |
| FIPS Code | 10003 |
| County Seat | Wilmington |
| Timezone | Eastern Standard Time (EST) |
| Population (2022) | 539,665 |
| Population Growth Rate(2000-2022) | 5.99% |
| Majority Ethnicity | White 65.11% |
| Public School Majority Ethnicity | White 35% |
| Partisan Voting Index | Democratic:+18 |
| Unemployment Rate (November 2024) | 3.4% |
| Area Code(s) | 302 / 856 |
| Race/Ethnicity | Percentage of Population (2022) |
|---|---|
| White | 65.11% |
| African American | 28.12% |
| Hispanic | 0.22% |
| Asian | 6.47% |
| Native American | 0.04% |
| Hawaiin/Pacific Islander | 0.04% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 34.99% |
| African American | 34.69% |
| Hispanic | 18.82% |
| Asian | 6.44% |
| Native American | 0.38% |
| Hawaiin/Pacific Islander | 0.16% |