ZIP Code 21704 Area Code

Frederick, Maryland

Area Code

301, 410, 443

Primary area codes for Maryland (per-ZIP data not available)

Location

ZIP Code21704
CityFrederick
StateMaryland (MD)
CountyFrederick

Frequently Asked Questions

ZIP code 21704 is in Frederick, Maryland. The primary area codes for Maryland are 301, 410, 443.

ZIP code 21704 is in Frederick, Maryland.

ZIP Code 21704

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