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ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Mount Airy, MD

Mount Airy, MD Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 21771StandardFrederick29,563240 / 301

Timezone(s):Eastern (GMT -05:00)
Population:9,288 (More Details)
Male Population:4,501
Female Population:4,787
Median Age:36
ZIP Codes:1
Area Codes:2
Total Area:667 square miles (county)
Land Area:660 square miles (county)
Water Area:7 square miles (county)

Mount Airy, MD Demographic Information *

Total population9,288
Male population4,501
Female population4,787
Median age (years)36.1
White Population8,555
Black Population224
Indian Population18
Asian Population201
Hawaiian Population4
Hispanic Population433
Median age (Male)34.3
Median age (Female)37.2
Total households3,107
Family households (families)2,453
Average household size2.97
Average family size3.36
Total housing units3,225
* Demographic data is based on 2010 Census.

Mount Airy, MD Other Information

192 Cities within 30 miles of Mount Airy, MD Products


  1. U.S. Postal Service [Last Updated: 5/1/2022],
  2. Internal Data Creation [Last Updated: 5/1/2022],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],