About 20559 - Washington, District of Columbia
ZIP code 20559 covers the community of Washington in District of Columbia, the United States. This area falls under Washington County County.
Around 17,397 people live in the 20559 ZIP code area. This is roughly in line with the District of Columbia average of about 22,323 residents.
Median household income is about $78,200 (below the District of Columbia average).
This ZIP code sits alongside neighboring areas like Washington within District of Columbia.