About 20355 - Washington, District of Columbia
ZIP code 20355 covers the community of Washington in District of Columbia, the United States. This area falls under Washington County County.
Census data puts the population of this ZIP code at 35,274 residents. This puts it well ahead of the typical ZIP code in District of Columbia (roughly 22,323).
Median household income is about $93,300 (near the District of Columbia average).
Other ZIP code codes in District of Columbia serve areas such as Washington.