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/GLENELG

Glenelg ZIP code, Maryland

The ZIP code for Glenelg, MD is 21737, and its area codes are 443, 667 and 410.

USPS city name
1 ZIP code
Population
2,474
Area codes
443, 667, 410

NANPA lists no telephone rate centre for Glenelg itself, so these are the area codes of the nearest one, Glenwood (2.2 miles). A town on an area-code boundary can differ from its neighbour.

Glenelg in numbers

About 2,474 people live in Glenelg, in 739 households. The median owner-occupied home is valued at $996,400 (2.4 times the Maryland median).

Population2,474Glenelg2,474
Households739Glenelg739
Median home value$996,400Glenelg$996,400Maryland$419,900US $332,700

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

ZIP codes addressed as Glenelg

ZIP codes with the USPS city name Glenelg
ZIP City Type Population Median income Median home
21737 Glenelg , MD Standard 2,474 $250,000+ $996,400

Map of Glenelg ZIP codes

The ZIP codes of Glenelg, 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 Glenelg

The nearest larger towns are Ashton-Sandy Spring (5,630 people, 7.0 mi), Olney (35,797 people, 7.6 mi) and Fulton (5,677 people, 9.0 mi).

Towns near Glenelg
TownPopulationDistance
Ashton-Sandy Spring 5,630 7.0 mi
Olney 35,797 7.6 mi
Fulton 5,677 9.0 mi
Sykesville 4,491 9.1 mi
Damascus 17,640 9.2 mi
Columbia 104,338 9.6 mi
Burtonsville 10,203 10.0 mi
Flower Hill 13,794 10.1 mi
Cloverly 16,646 10.1 mi
Redland 18,665 10.2 mi
Leisure World 8,882 10.2 mi
Montgomery Village 34,110 10.4 mi
Ellicott City 75,257 10.5 mi
Scaggsville 10,564 10.7 mi

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

Cite this page

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

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