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zipcodes.pro — CITY/MD/GLEN-ARM

Glen Arm ZIP code, Maryland

The ZIP code for Glen Arm, MD is 21057, and its area codes are 410, 443 and 667.

USPS city name
1 ZIP code
Population
4,386
Area codes
410, 443, 667

NANPA lists no telephone rate centre for Glen Arm itself, so these are the area codes of the nearest one, Fork (3.4 miles). A town on an area-code boundary can differ from its neighbour.

Glen Arm in numbers

About 4,386 people live in Glen Arm, in 1,545 households. The median household income is $145,924 a year, 41% above the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $623,200 (48% above the Maryland median).

Population4,386Glen Arm4,386
Households1,545Glen Arm1,545
Median household income$145,924Glen Arm$145,924Maryland$103,678US $80,734
Median home value$623,200Glen Arm$623,200Maryland$419,900US $332,700

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

ZIP codes addressed as Glen Arm

ZIP codes with the USPS city name Glen Arm
ZIP City Type Population Median income Median home
21057 Glen Arm , MD Standard 4,386 $145,924 $623,200

Map of Glen Arm ZIP codes

21057

The ZIP codes of Glen Arm, 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 Glen Arm

The nearest larger towns are Carney (28,343 people, 3.1 mi), Hampton (5,372 people, 3.3 mi) and Perry Hall (29,105 people, 3.4 mi).

Towns near Glen Arm
TownPopulationDistance
Carney 28,343 3.1 mi
Hampton 5,372 3.3 mi
Perry Hall 29,105 3.4 mi
Kingsville 4,687 4.4 mi
Timonium 10,304 4.7 mi
Parkville 30,549 5.0 mi
Honeygo 12,250 5.3 mi
White Marsh 10,932 5.5 mi
Overlea 13,035 5.9 mi
Lutherville 6,574 5.9 mi
Cockeysville 23,962 6.6 mi
Rossville 16,059 6.6 mi
Towson 58,679 6.8 mi
Pleasant Hills 3,836 6.8 mi

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

Cite this page

zipcodes.pro. “Glen Arm, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/glen-arm

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