District of Columbia: Time Zones, Counties, Cities & Map
District of Columbia uses Eastern Time.
- Resident population, July 2025
- 693,645
- Land area
- 61.1 sq mi (158 km²)
- Water area
- 7.22 sq mi (18.7 km²)
- State FIPS code
- 11
- Coordinates (central point)
- 38.904243, -77.016524
These coordinates mark a central point for the area, not a street address.
Metro and micro areas in District of Columbia, largest first
1 metro area has a county in District of Columbia. One crosses into another state; its population is for the whole area. Populations are July 2025 estimates.
- Washington-Arlington-Alexandria, DC-VA-MD-WV Metro Area6,465,724 people
Counties and equivalents, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- District of Columbia693,645 people
Cities, towns and communities, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- Washington, District of Columbia (city)681,294 people
ZIP Code areas, largest first
These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.
- ZIP 2000272,397 people
- ZIP 2001167,434 people
- ZIP 2001963,380 people
- ZIP 2002053,005 people
- ZIP 2000950,150 people
- ZIP 2000144,616 people
- ZIP 2003240,920 people
- ZIP 2000337,482 people
- ZIP 2001632,730 people
- ZIP 2001031,808 people
- ZIP 2000829,434 people
- ZIP 2000724,602 people
All 57
- ZIP 2001721,208 people
- ZIP 2001819,562 people
- ZIP 2001217,519 people
- ZIP 2002415,888 people
- ZIP 2001515,653 people
- ZIP 2003713,156 people
- ZIP 2000513,131 people
- ZIP 200364,605 people
- ZIP 200573,229 people
- ZIP 200522,730 people
- ZIP 200041,831 people
- ZIP 200641,442 people
- ZIP 200061,362 people
- ZIP 200591,338 people
- ZIP 20373383 people
- ZIP 20390246 people
- ZIP 2031923 people
- ZIP 2031715 people
See all 57 ZIP Code areas in District of Columbia, largest first
Before using this answer on a form
Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.
Find the county where you are now, check its ZIP area, or check the time zone where you are.
Areas that only touch the edge
These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.