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-BRIAR

Mount Briar ZIP codes, Maryland

No ZIP code is named for Mount Briar, MD; addresses there use a neighbouring town's name. The ZIP code covering it is 21756. Its area codes are 240, 301 and 227.

USPS city name
0 ZIP codes
Overlapping the city
1 more
Population
201
Area codes
240, 301, 227

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

Mount Briar in numbers

About 201 people live in Mount Briar, in 93 households. The median household income is $237,404 a year, 2.3 times the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $321,200 (24% below the Maryland median). The median age is 47.3; 44.6% of adults 25 and over hold a bachelor's degree or higher (43.4% across Maryland).

Population201Mount Briar201
Households93Mount Briar93
Median age47.3Mount Briar47.3Maryland39.4US 38.9
Median household income$237,404Mount Briar$237,404Maryland$103,678US $80,734
Median home value$321,200Mount Briar$321,200Maryland$419,900US $332,700
Bachelor's degree or higher44.6%Mount Briar44.6%Maryland43.4%US 35.7%
Population density323 / sq miMount Briar323 / sq mi

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

ZIP codes covering Mount Briar

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

ZIP codes overlapping Mount Briar
ZIP City Type Population Median income Median home
21756 Keedysville , MD Standard 3,640 $101,786 $413,200

Map of Mount Briar ZIP codes

21756

The ZIP codes of Mount Briar, 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 Briar

The nearest larger towns are Trego-Rohrersville Station (209 people, 1.1 mi), Keedysville (1,183 people, 3.1 mi) and Sharpsburg (585 people, 3.5 mi).

Towns near Mount Briar
TownPopulationDistance
Boonsboro 3,809 4.9 mi
Middletown 5,014 8.1 mi
Brunswick 8,450 9.2 mi
Jefferson 3,314 9.5 mi
St. James 4,824 9.6 mi
Braddock Heights 2,892 10.6 mi
Lovettsville, VA 2,719 12.2 mi
Halfway 10,849 12.8 mi
Robinwood 8,042 12.8 mi
Hagerstown 43,665 13.8 mi
Ranson, WV 5,729 13.9 mi
Frederick 83,395 14.6 mi
Ballenger Creek 26,390 14.9 mi
Martinsburg, WV 18,904 15.6 mi

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

Cite this page

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

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