Year Built

Washington DC contains 277 ZIP codes across 1 counties. With an estimated population of 672,079 residents and a median age of 35.54 years, it is a relatively young state in terms of demographics.

Economically, Washington DC is broadly a upper-middle-income state. The median household income of $111,467 is above the national average. The statewide unemployment rate is 7.0%, above the national average. Approximately 14.0% of residents live below the poverty line.

Washington DC has a premium housing market overall, with a median home value of $739,999 — more than double the national average. Median monthly rent across the state averages around $1,882. Homeownership stands at 41.9% statewide.

The population of Washington DC is racially diverse, with Black as the largest group at 42.5%. Residents are broadly highly educated — 66.8% hold a bachelor's degree or higher, significantly above the national average.

The 277 ZIP codes across Washington DC vary widely in character — from dense urban cores to rural agricultural areas. Each of the 1 counties has its own economic profile, housing market, and demographic makeup. Browse by county below to find ZIP codes that match your specific needs, whether you're researching relocation, real estate, business demographics, or local government boundaries.

Looking for ZIP code data in Washington DC? Every ZIP code page includes population counts, median household income, home values, rental rates, age distribution, race and ethnicity breakdown, education levels, commute data, and housing stock information — all sourced from the U.S. Census Bureau's American Community Survey.