| Place Name | Port Penn |
| Place Type | Census Designated Place |
| ZIP Code(s) | 19731 |
| County | New Castle County |
| Area Code(s) | 302 |
| Timezone | Eastern Daylight Time (EDT) |
| Population (2022) | 293 |
| Majority Ethnicity | White 100% |
| Metro/Micro Stats Area | Philadelphia-Camden-Wilmington, PA-NJ-DE-MD |
| US Congressional District(s) | Delaware At-Large |
| State House Districts | 9 |
| State Senate Districts | 14 |
| Race/Ethnicy | Percentage of Population (2021) |
|---|---|
| White | 100% |
| African American | 0% |
| Hispanic | 0% |
| Asian | 0% |
| Native American | 0% |
| Hawaiin/Pacific Islander | 0% |