About 20402 - Washington, District of Columbia
The ZIP code 20402 of Washington falls within District of Columbia, the United States - a mid-sized area by population. It sits within Washington County County.
Census data puts the population of this ZIP code at 39,076 residents. That's noticeably above the average for a District of Columbia ZIP code, which sits near 22,323 people.
Median household income is about $87,600 (near the District of Columbia average).
This ZIP code sits alongside neighboring areas like Washington within District of Columbia.