Washington zipcode
| City | Washington |
| ZIP Code | 20370 |
| Type | Company/Organization |
| State Code | DC |
| State | District of Columbia |
ZIP code of Washington is 20370. This place is located in District of Columbia state in US. To send any postal service to Washington, you must use 20370 zipcode.
The ZIP code 20370 is also used with 1 more city name of District of Columbia.
- Navy Annex, DC