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List of Zip Codes in Gaithersburg, Maryland

Outlined below is a zip code list for Gaithersburg. Select a zip code you are interested in to find zip code data on demographics, family, housing, education, transportation, and real estate. See the Gaithersburg Zip Code Map.

Zip Code 20877 Population: 33,519
Zip Code 20878 Population: 62,983
Zip Code 20879 Population: 24,630
Zip Code 20882 Population: 14,294