| Place Name | New Castle |
| Place Type | City |
| ZIP Code(s) | 19720 |
| County | New Castle County |
| Area Code(s) | 302 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 5,309 |
| Population Growth Rate (2010-19) | 5.03% |
| Majority Ethnicity | White 65.19% |
| Metro/Micro Stats Area | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD |
| US Congressional District(s) | Delaware At-Large |
| State House Districts | 16,17 |
| State Senate Districts | 2,12 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 65.19% |
| African American | 30.48% |
| Hispanic | 0% |
| Asian | 0.46% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 3.88% |