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21057 ZIP Code - United States

This ZIP Code belongs to the following areas. Below you can see the map of the postal area.

City City ZIP Type Estimated Population
Glen Arm, MD PRIMARY Significado STANDARD 3.718

Postal Zone from ZIP Code 21057 - United States

21057 ZIP Code - United States
ZIP Code Tabulation Areas (ZCTAs) for 21057 ZIP Code. A ZCTA is a generalized area representation of the american ZIP Code service area.

21057 details

City Glen Arm
County Baltimore
State Maryland
Estimated Population 4.232
Density 97,20
Timezone America/New_York
Latitude 39.450480000
Longitude -76.506500000

Average county area weight on ZIP Code 21057

County FIP Weight
Baltimore 24005 100%

ZIP Code Maryland

Check the list of Maryland ZIP Code.

United States ZIP Code

See all the USA ZIP Code.

Status Definitions
  • PRIMARY: means an the primary city name. Official city name, although the city name might also have another acceptable name.
  • ACCEPTABLE: means an adequate city name. City names that are abbreviated will frequently be listed as unacceptable because abbreviations are not an acceptable city name format.
  • NOT ACCEPTABLE: Means an inadequate city name has been entered or received based on information entered.
  • UNIQUE: Assigned to a company, government agency, or entity with sufficient mail volume, based on average daily volume of letter size mail received, availability of ZIP Code numbers in the postal area, and the US mail service cost-benefit analysis.