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/KEYMAR

Keymar ZIP code, Maryland

The ZIP code for Keymar, MD is 21757.

USPS city name
1 ZIP code
Population
2,671

Keymar in numbers

About 2,671 people live in Keymar, in 1,018 households. The median household income is $100,500 a year, 3% below the Maryland median of $103,678 (US: $80,734). The median owner-occupied home is valued at $466,100 (11% above the Maryland median).

Population2,671Keymar2,671
Households1,018Keymar1,018
Median household income$100,500Keymar$100,500Maryland$103,678US $80,734
Median home value$466,100Keymar$466,100Maryland$419,900US $332,700

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

ZIP codes addressed as Keymar

ZIP codes with the USPS city name Keymar
ZIP City Type Population Median income Median home
21757 Keymar , MD Standard 2,671 $100,500 $466,100

Map of Keymar ZIP codes

21757

The ZIP codes of Keymar, 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 Keymar

The nearest larger towns are Taneytown (7,932 people, 6.5 mi), Thurmont (6,254 people, 8.2 mi) and Emmitsburg (2,845 people, 8.4 mi).

Towns near Keymar
TownPopulationDistance
Taneytown 7,932 6.5 mi
Thurmont 6,254 8.2 mi
Emmitsburg 2,845 8.4 mi
Walkersville 6,414 10.0 mi
Linganore 14,444 12.7 mi
Carroll Valley, PA 3,992 12.8 mi
Westminster 20,445 13.4 mi
Spring Ridge 5,922 13.8 mi
Frederick 83,395 13.8 mi
Littlestown, PA 4,850 13.9 mi
Bartonsville 3,282 15.0 mi
Lake Heritage, PA 2,997 15.3 mi
Mount Airy 9,805 16.1 mi
Monrovia 3,568 16.2 mi

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

Cite this page

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

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