About 20056 - Washington, District of Columbia
Located in District of Columbia, the United States is home to the mid-sized community of Washington, served by ZIP code 20056. It sits within Washington County County.
Washington has a reported population of 33,318. That's noticeably above the average for a District of Columbia ZIP code, which sits near 22,323 people.
Median household income is about $79,500 (below the District of Columbia average).
Other ZIP code codes in District of Columbia serve areas such as Washington.