Zip Code Database List
Account Login
Find ZIP+4 of Address

Find the ZIP Code, County, and +4 of any U.S. Address

FREE ZIP Code Finder

Find info on any U.S. ZIP Code

Other FREE Lookups

Lookup ZIP Code of any City, State, County or Area Code

FREE Radius Search

Find all ZIP Codes

FREE Distance Calc

Calculate the distance between two U.S. or Canadian ZIP codes.

ZIP Code Database - Facts & Stats

Data Last Updated: May 1, 2022

ZIP Codes for City of Glen Arm, MD

Glen Arm, MD Covers 1 ZIP Code

ZIP CodeTypeCountyPopulationArea Code(s)
ZIP Code 21057StandardBaltimore4,112410 / 443 / 667

Timezone(s):Eastern (GMT -05:00)
Population:4,112 (More Details)
Male Population:2,036
Female Population:2,076
Median Age:50
ZIP Codes:1
Area Codes:3
Total Area:682 square miles (county)
Land Area:598 square miles (county)
Water Area:83 square miles (county)

Glen Arm, MD Demographic Information *

There is no Census data for the city of GLEN ARM, MD. We have pulled information for the ZIP Code 21057 instead.
Total population4,112
Male population2,036
Female population2,076
Median age (years)49.9
White Population3,798
Black Population137
Indian Population11
Asian Population84
Hawaiian Population1
Hispanic Population65
Median age (Male)47.6
Median age (Female)51.3
Total households1,578
Family households (families)1,187
Average household size2.51
Average family size2.92
Total housing units1,695
* Demographic data is based on 2010 Census. 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],