Wilmington, DE ZIP Codes, Area Codes and Address Format
Wilmington is one of the busiest mail areas in Delaware, with 10 standard ZIP codes in New Castle County. Here is everything you need to format a Wilmington address correctly.
- State
- Delaware (DE)
- County
- New Castle County
- Standard ZIP codes
- 10
- Time zone
- Eastern
Wilmington ZIP codes
These are the standard delivery ZIP codes for Wilmington. The city has 25 ZIP codes in total when PO Box and unique codes are included.
- 19801
- 19802
- 19803
- 19804
- 19805
- 19806
- 19807
- 19808
- 19809
- 19810
Area codes in Wilmington
Wilmington phone numbers use 302. A single area code keeps local numbers easy to recognize.
Sample Wilmington addresses
William Young
2666 Sycamore Way
Wilmington, DE 19803
Sofia Nguyen
1737 Franklin Dr Apt 16
Wilmington, DE 19806
The street lines are invented; the city, state and ZIP codes are real. Use them for form testing, mockups and training materials, never for real orders.
How to write an address in Wilmington
- End the address with WILMINGTON, DE and the five-digit ZIP code.
- Put apartment or suite numbers at the end of the street line.
- Use USPS abbreviations such as ST, AVE and BLVD.
- Match the ZIP code to the street. Wilmington has 10 codes, so the city name alone is not enough.
Other cities in New Castle County
More Delaware cities
Delmar, Bear, Claymont, Dover AFB, Dover, or see all Delaware cities.
Need test addresses in Wilmington? Generate as many as you need, with real ZIP codes and local area codes.
Generate Wilmington addresses