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ZIP code 21771
Mount Airy, MD · Frederick County
About ZIP code 21771
- ZIP code 21771 is in Mount Airy, Frederick County, Maryland.
- About 33,031 people live in it, which is 142.5 people per square mile.
- It also reaches into Carroll County, Howard County and Montgomery County.
- Time zone: Eastern Standard Time.
- The middle of the ZIP code is at 39.395, -77.159.
A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.
Mount Airy, MD
ZIP code 21771 is the post office name for Mount Airy, MD. 9,805 people live in Mount Airy. Typical household income is $151,324. A typical home costs $487,400.
- Stronger than most towns on: Jobs and income, Home internet and working from home and Airport access.
- Weaker than most towns on: Short commute, Cost of living and Pleasant weather for being outdoors.
Nearby ZIP codes
- 21770 Monrovia · 8,751 people
- 21797 Woodbine · 8,643 people
- 21774 New Market · 17,134 people
- 21762 Libertytown · 139 people
- 20872 Damascus · 13,983 people
- 21776 New Windsor · 6,261 people
- 21754 Ijamsville · 8,156 people
- 21723 Cooksville · 669 people
ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.