DC federal district guide

District of Columbia Municipalities and Time Zones

Explore 1 Census incorporated-place record and Eastern Time coverage for District of Columbia.

1 incorporated-place record1 time zone

Explore District of Columbia

Census incorporated places in District of Columbia

Browse the Census incorporated-place records, including city.

Open municipality list

Time zones in District of Columbia

District of Columbia uses Eastern Time. See full-area and partial coverage details.

Open time-zone guide

What this directory counts in District of Columbia

District of Columbia has 1 Census-recognized incorporated place as of January 1, 2026, including 1 city.

Types represented in this directory

  • city (1)

Need the municipality for a specific address?

A city name in a postal address does not always identify the governing municipality. Use the address lookup when you need a location-specific answer.

Check an address