District of Columbia Zip Codes
23 zip codes in District of Columbia. Capital: Washington. Nickname: The District.
Quick Facts
- Total ZIP codes
- 23
- Counties covered
- 1
- Cities and places
- 4
- Top cities by ZIP count
- Washington, Temple Hills, Bolling AFB
- Time zone
- Eastern Time (ET)
- Capital
- Washington
Top ZIP Rankings in District of Columbia
Ranked top 10 lists by household income, population, and home value.
About District of Columbia Zip Codes
District of Columbia (DC), known as The District, with its capital in Washington, contains 23 unique USPS ZIP codes distributed across 1 county and 4 distinct cities and places. The state observes Eastern Time (ET). ZIP codes here cover residential addresses, PO box ranges, business districts, and unique large-volume customer codes.
The cities with the most ZIP codes in District of Columbia are Washington, Temple Hills, Bolling AFB, Fort McNair. Larger metro areas use multiple ZIP codes to separate neighborhoods, business districts, and PO box ranges. The counties with the highest ZIP density are District of Columbia County, reflecting both population and geographic spread.
District of Columbia ZIP codes range from 20001 to 20319. The first digit reflects the USPS national region and the next two narrow down to a sectional center facility that routes mail across the state. Use the lists below to browse every ZIP code by county or by city, or jump straight to a ZIP for population, income, housing, weather, and cost of living details.
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Browse by County
Browse by Top Cities
- Washington (20)
- Temple Hills (1)
- Bolling AFB (1)
- Fort McNair (1)
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All Zip Codes in District of Columbia
District of Columbia County (23 ZIP codes)
| Zip Code | City |
|---|---|
| 20001 | Washington |
| 20002 | Washington |
| 20003 | Washington |
| 20004 | Washington |
| 20005 | Washington |
| 20006 | Washington |
| 20007 | Washington |
| 20008 | Washington |
| 20009 | Washington |
| 20010 | Washington |
| 20011 | Washington |
| 20012 | Washington |
| 20015 | Washington |
| 20016 | Washington |
| 20017 | Washington |
| 20018 | Washington |
| 20019 | Washington |
| 20020 | Temple Hills |
| 20024 | Washington |
| 20032 | Bolling AFB |
| 20036 | Washington |
| 20037 | Washington |
| 20319 | Fort McNair |
Frequently Asked Questions
How many ZIP codes does District of Columbia have?
District of Columbia has 23 ZIP codes spanning 4 cities and places across 1 counties.
What are the major cities in District of Columbia?
The cities with the most ZIP codes in District of Columbia are Washington, Temple Hills, Bolling AFB, Fort McNair. Larger metro areas use multiple ZIP codes to cover individual neighborhoods.
Which county has the most ZIP codes in District of Columbia?
District of Columbia County has the most with 23 ZIP codes. The next largest counties are .
What time zone is District of Columbia in?
District of Columbia observes Eastern Time (ET).
What is the smallest ZIP code number in District of Columbia?
The lowest ZIP code in District of Columbia is 20001.
What is the largest ZIP code number in District of Columbia?
The highest ZIP code in District of Columbia is 20319.
How are ZIP codes structured in District of Columbia?
USPS ZIP codes are five digit numbers. The first digit indicates a broad U.S. region, the second and third narrow to a sectional center facility, and the last two identify a specific post office or delivery area. District of Columbia ZIP codes typically begin with "2".
What states border District of Columbia?
District of Columbia borders Maryland, Virginia.
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Nearby States
Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.