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/MD/HENDERSON

Henderson ZIP code, Maryland

The ZIP code for Henderson, MD is 21640, and its area codes are 667 and 410.

USPS city name
1 ZIP code
Overlapping the city
1 more
Population
132
Area codes
667, 410

NANPA lists no telephone rate centre for Henderson itself, so these are the area codes of the nearest one, Greensboro (7.8 miles). A town on an area-code boundary can differ from its neighbour.

Mail addressed to Henderson uses the ZIP code above. 1 more ZIP code covers part of the city but is addressed as somewhere else; they are listed separately below.

ZIP codes addressed as Henderson

ZIP codes with the USPS city name Henderson
ZIP City Type Population Median income Median home
21640 Henderson , MD Standard 1,163 $53,558 $268,500

Other ZIP codes overlapping Henderson

These ZIP codes cover part of Henderson but are addressed as somewhere else.

ZIP codes overlapping Henderson
ZIP City Type Population Median income Median home
21649 Marydel , MD Standard 1,890 $68,542 $222,700

Map of Henderson ZIP codes

21640

The ZIP codes of Henderson, MD, 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 Henderson

The nearest larger towns are Marydel (149 people, 2.8 mi), Goldsboro (248 people, 3.2 mi) and Hartly, DE (199 people, 7.1 mi).

Towns near Henderson
TownPopulationDistance
Greensboro 2,634 7.2 mi
Camden, DE 4,106 11.3 mi
Highland Acres, DE 3,752 13.6 mi
Riverview, DE 2,596 13.6 mi
Denton 4,936 13.9 mi
Rising Sun-Lebanon, DE 4,163 14.0 mi
Dover, DE 39,837 14.4 mi
Harrington, DE 3,838 14.7 mi
Dover Base Housing, DE 2,962 15.4 mi
Clayton, DE 4,222 15.5 mi
Centreville 4,761 16.1 mi
Smyrna, DE 13,165 17.4 mi
Chestertown 5,594 19.2 mi
Milford, DE 12,803 21.7 mi

More nearby: every ZIP code in Caroline County · Maryland ZIP codes

Cite this page

zipcodes.pro. “Henderson, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/henderson

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