District of Columbia ZIP Codes
United States · 277 codes
District of Columbia has 277 ZIP codes, from 20001 to 56972, serving 277 places in 1 county. Choose a county to see every code and place.
Countys of District of Columbia
Frequently asked questions
How many ZIP codes are there in District of Columbia?
277 ZIP codes for 277 places in 1 county.
What is the ZIP code range of District of Columbia?
ZIP codes in District of Columbia run from 20001 to 56972 in this list.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.