ZIP Code 19891
Wilmington · New Castle, Delaware
19891 is the ZIP code of Wilmington in New Castle, Delaware, United States.
- ZIP Code
- 19891
- County
- New Castle
- State
- Delaware
- Country
- United States
Place with ZIP code 19891
| Place | County | Location |
|---|---|---|
| Wilmington | New Castle | 39.565, -75.597 |
Near Philadelphia
The nearest major city is Philadelphia, about 57 km away.
Nearby ZIP codes
Frequently asked questions
Which places use ZIP code 19891?
Wilmington.
Which county and state is 19891 in?
New Castle, Delaware, United States.
What is the nearest major city to 19891?
Philadelphia, about 57 km away.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.