ZIP Code 20001

20001 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

200xx

Where this code sits

20001 is part of the 200xx 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.

Area codes over the same ground

Postal and telephone geography are drawn separately, so these codes cover the area 20001 delivers to without sharing its boundary.

ZIP codes nearest 20001

The ZIP codes whose reference points sit closest to 20001.
ZIP code	Distance	Delivers to
ZIP code 20060	0.4 mi	Washington, DC
ZIP code 20417	0.7 mi	Washington, DC
ZIP code 20055	0.8 mi	Washington, DC
ZIP code 20536	0.8 mi	Washington, DC
ZIP code 20420	0.8 mi	Washington, DC
ZIP code 20005	0.8 mi	Washington, DC
ZIP code 20548	1.0 mi	Washington, DC
ZIP code 20404	1.0 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.

Each point is the reference point for 20001, plotted from its record coordinates.

Reference points and footprint
Not an official NANPA boundary
Not a USPS delivery area

Scope ZIP code 20001. Source GeoNames US postal codes (2026-07 postal dump) and Census 2024 county Gazetteer (2024 Gazetteer). Updated 15 July 2026. A ZIP code is a set of delivery routes, not an area; the point shown is a record coordinate, not a centre.