About 20511 - Washington, District of Columbia
The ZIP code 20511 of Washington falls within District of Columbia, the United States - a mid-sized area by population. It sits within Washington County County.
Around 31,440 people live in the 20511 ZIP code area. That's noticeably above the average for a District of Columbia ZIP code, which sits near 22,323 people.
Median household income is about $98,800 (near the District of Columbia average).
Nearby communities in District of Columbia include Washington.