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

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zipcodes.pro — CITY/MD/MOUNT-AETNA

Mount Aetna ZIP codes, Maryland

No ZIP code is named for Mount Aetna, MD; addresses there use a neighbouring town's name. 2 ZIP codes cover it: 21740 and 21742. Its area codes are 240, 301 and 227.

USPS city name
0 ZIP codes
Overlapping the city
2 more
Population
637
Area codes
240, 301, 227

NANPA lists no telephone rate centre for Mount Aetna itself, so these are the area codes of the nearest one, Hagerstown (0.0 miles). A town on an area-code boundary can differ from its neighbour.

Mount Aetna in numbers

About 637 people live in Mount Aetna, in 227 households. The median household income is $145,662 a year, 40% above the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $462,000 (10% above the Maryland median), and median gross rent is $1,153 a month. The median age is 48.5; 52.1% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland); the average commute takes 18 minutes.

Population637Mount Aetna637
Households227Mount Aetna227
Median age48.5Mount Aetna48.5Maryland39.4US 38.9
Median household income$145,662Mount Aetna$145,662Maryland$103,678US $80,734
Median home value$462,000Mount Aetna$462,000Maryland$419,900US $332,700
Median gross rent$1,153Mount Aetna$1,153Maryland$1,705US $1,413
Bachelor's degree or higher52.1%Mount Aetna52.1%Maryland43.4%US 35.7%
Mean commute17.7 minMount Aetna17.7 minMaryland31.1 minUS 26.4 min
Population density451 / sq miMount Aetna451 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place Mount Aetna CDP. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes covering Mount Aetna

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

ZIP codes overlapping Mount Aetna
ZIP City Type Population Median income Median home
21740 Hagerstown , MD Standard 64,792 $62,873 $262,300
21742 Hagerstown , MD Standard 34,069 $86,288 $304,800

Map of Mount Aetna ZIP codes

2174021742

The ZIP codes of Mount Aetna, 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 Mount Aetna

The nearest larger towns are Cavetown (858 people, 3.2 mi), Robinwood (8,042 people, 3.3 mi) and Smithsburg (3,115 people, 4.2 mi).

Towns near Mount Aetna
TownPopulationDistance
Robinwood 8,042 3.3 mi
Smithsburg 3,115 4.2 mi
Hagerstown 43,665 6.5 mi
Boonsboro 3,809 6.7 mi
Paramount-Long Meadow 2,569 7.0 mi
St. James 4,824 7.4 mi
Fountainhead-Orchard Hills 6,567 8.3 mi
Halfway 10,849 8.5 mi
Maugansville 3,624 9.7 mi
Waynesboro, PA 11,047 10.7 mi
Wayne Heights, PA 3,293 10.8 mi
State Line, PA 3,111 11.0 mi
Thurmont 6,254 11.0 mi
Middletown 5,014 11.6 mi

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

Cite this page

zipcodes.pro. “Mount Aetna, MD ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/md/mount-aetna

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