About 20523 - Washington, District of Columbia
The ZIP code 20523 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 12,513 residents. That's below the District of Columbia average of about 22,323 people per ZIP code.
Median household income is about $114,300 (above the District of Columbia average).
Other ZIP code codes in District of Columbia serve areas such as Washington.