About 20505 - Washington, District of Columbia
20505 is a sparsely populated ZIP code covering 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 397 residents. It's a quieter, less populous area than the typical District of Columbia ZIP code (avg. ~22,323).
Median household income is about $84,400 (near the District of Columbia average).
Nearby communities in District of Columbia include Washington.