Wilmington, DE ZIP Codes
Wilmington, Delaware has 25 ZIP codes: 10 for street addresses (, , , , , and 4 more), 3 for PO boxes and 12 for single organizations.
Your street decides which one you use.
Which Wilmington ZIP code is my address in?
Street ranges from the Census Bureau, 2026. PO box and organization ZIP codes are not found by street. A new street may be missing: address not found?
Wilmington ZIP code map
Tap or point to an area to see its ZIP code.Full-size map
PO box and single-organization ZIP codes have no area on the map. Dashed line: Wilmington city limits.
Map: Census Bureau ZIP Code Tabulation Areas (2020) and place limits (2024).
All Wilmington ZIP codes by type
| ZIP | Type and post office or station |
|---|---|
| 19801 | street delivery Rodney Sq |
| 19802 | street delivery Edgemoor |
| 19803 | street delivery Talleyville |
| 19804 | street delivery Newport |
| 19805 | street delivery Lancaster Ave |
| 19806 | street delivery Lancaster Ave |
| 19807 | street delivery Greenville |
| 19808 | street delivery Marshallton |
| 19809 | street delivery Edgemoor |
| 19810 | street delivery Edgemoor |
| 19850 | PO boxes at the Wilmington Box post office Wilmington Box |
| 19880 | PO boxes at the Wilmington Box post office Wilmington Box |
| 19884 | one organization Wilmington Box |
| 19885 | one organization Wilmington Box |
| 19886 | one organization Wilmington |
| 19890 | one organization Rodney Sq |
| 19891 | one organization Wilmington |
| 19892 | one organization Wilmington |
| 19893 | one organization Wilmington |
| 19894 | one organization Wilmington |
| 19895 | one organization Rodney Sq |
| 19896 | one organization Wilmington |
| 19897 | one organization Wilmington |
| 19898 | one organization Rodney Sq |
| 19899 | PO boxes at the Rodney Sq post office Rodney Sq |
Why your mail may say Wilmington when you live outside it
Wilmington ZIP codes also cover Greenville, Edgemoor and Pike Creek, so a letter addressed to Wilmington can go to a home outside the city limits.
A ZIP code does not set your city, school district or tax. New Castle County property records show which city you are in.
Wilmington ZIP code questions
What is the main ZIP code for Wilmington?
19886, the ZIP code of the main Wilmington post office at 147 Quigley Blvd.
Which Wilmington ZIP codes are for PO boxes only?
19850, 19880 and 19899. Mail to them goes to boxes at the post office, not to street addresses.
What county is Wilmington in?
New Castle County.
ZIP codes for towns near Wilmington
More towns near Wilmington: Radnor Township, Deptford Township, Tredyffrin Township, Lower Merion Township, Washington Township, Upper Merion Township, Camden, Gloucester Township, Philadelphia.
Sources and last checked
USPS ZIP Locale Detail (October 1, 2026), GeoNames (CC BY 4.0), U.S. Census Bureau, HUD-USPS crosswalk.
Checked October 20, 2026. Sources · How we build our lists · Corrections