About 20066 - Washington, District of Columbia
The ZIP code 20066 of Washington falls within District of Columbia, the United States - a mid-sized area by population. It sits within Washington County County.
Around 22,559 people live in the 20066 ZIP code area. That's close to the typical population for a ZIP code in District of Columbia (~22,323).
Median household income is about $103,000 (near the District of Columbia average).
Other ZIP code codes in District of Columbia serve areas such as Washington.