ZIP code · Mount Airy · Maryland · United States

ZIP code 21771 — Mount Airy

Name: Mount Airy (21771)
Address: Maryland, 21771, US

ZIP code 21771 serves Mount Airy, Maryland.

Postal code: 21771
Single source Value from one source, not cross-checked.
City: Mount Airy
County: Frederick
State: Maryland
Country: United States
Coordinates: 39.3881, -77.1723 — precision estimated (postal-area centroid)
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Nearby localities

21770Monrovia
21774New Market
21792Unionville
21765Lisbon
21797Woodbine
21762Libertytown
21754Ijamsville
20872Damascus
21701Frederick
21776New Windsor

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames. Data generated on 2026-08-21. Methodology · Report an error on this page