Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/DC/NAVAL-ANACOST-ANNEX

Naval Anacost Annex ZIP code, District of Columbia

The ZIP code for Naval Anacost Annex, DC is 20373, and its area codes are 202 and 771.

USPS city name
1 ZIP code
Population
383
Area codes
202, 771

NANPA lists no telephone rate centre for Naval Anacost Annex itself, so these are the area codes of the nearest one, Washington (0.9 miles). A town on an area-code boundary can differ from its neighbour.

Naval Anacost Annex in numbers

About 383 people live in Naval Anacost Annex, in 25 households.

Population383Naval Anacost Annex383
Households25Naval Anacost Annex25

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the ZIP code addressed as Naval Anacost Annex. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as Naval Anacost Annex

ZIP codes with the USPS city name Naval Anacost Annex
ZIP City Type Population Median income Median home
20373 Naval Anacost Annex , DC Standard 383 — —

Map of Naval Anacost Annex ZIP codes

20373

The ZIP codes of Naval Anacost Annex, DC, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near Naval Anacost Annex

The nearest larger towns are Hillcrest Heights, MD (16,063 people, 2.6 mi), Glassmanor, MD (16,981 people, 3.0 mi) and Washington (681,294 people, 3.4 mi).

Towns near Naval Anacost Annex
TownPopulationDistance
Hillcrest Heights, MD 16,063 2.6 mi
Glassmanor, MD 16,981 3.0 mi
Washington 681,294 3.4 mi
Forest Heights, MD 2,642 3.5 mi
Silver Hill, MD 5,193 4.1 mi
Marlow Heights, MD 5,456 4.4 mi
Alexandria, VA 156,976 4.5 mi
Temple Hills, MD 8,969 4.6 mi
Suitland, MD 23,793 4.9 mi
National Harbor, MD 4,454 4.9 mi
Arlington, VA 236,254 5.0 mi
Oxon Hill, MD 17,893 5.1 mi
Coral Hills, MD 9,756 5.1 mi
Huntington, VA 13,502 5.5 mi

More nearby: every ZIP code in District of Columbia · District of Columbia ZIP codes

Cite this page

zipcodes.pro. “Naval Anacost Annex, DC ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/dc/naval-anacost-annex

Underlying data is public domain or openly licensed — sources, vintages and licences.