ZIP Code 20401
20401 is one of District of Columbia's ZIP codes, delivering to addresses in Washington, District of Columbia.
- City
- Washington
- District
- District of Columbia
- State
- District of Columbia
- Prefix
- 204xx
Where this code sits
20401 is part of the 204xx range, the group of codes handled by one mail processing centre. Washington is served by 271 ZIP codes in total; the full list, with the district each falls in, is on the Washington page.
Washington District of Columbia ZIP codes →
Area codes over the same ground
Postal and telephone geography are drawn separately, so these codes cover the area 20401 delivers to without sharing its boundary.
ZIP codes nearest 20401
| ZIP code | Distance | Delivers to |
|---|---|---|
| ZIP code 20013 | 0.0 mi | Washington, DC |
| ZIP code 20026 | 0.0 mi | Washington, DC |
| ZIP code 20029 | 0.0 mi | Washington, DC |
| ZIP code 20030 | 0.0 mi | Washington, DC |
| ZIP code 20033 | 0.0 mi | Washington, DC |
| ZIP code 20035 | 0.0 mi | Washington, DC |
| ZIP code 20038 | 0.0 mi | Washington, DC |
| ZIP code 20039 | 0.0 mi | Washington, DC |
Straight-line distance between place reference points, not driving distance. Where a place has no Census Gazetteer point, its postal centroid is used instead.
- Reference points and footprint
- Not an official NANPA boundary
- Not a USPS delivery area
Scope ZIP code 20401. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated . A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.