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ZIP code 20877

Gaithersburg, MD · Montgomery County

About ZIP code 20877

  • ZIP code 20877 is in Gaithersburg, Montgomery County, Maryland.
  • About 38,546 people live in it, which is 2,638.4 people per square mile.
  • Time zone: Eastern Standard Time.
  • The middle of the ZIP code is at 39.141, -77.189.

A ZIP code is a mail delivery area, not a town border, and one ZIP code can cover parts of several towns. To check a single address, use the US Postal Service lookup.

Gaithersburg, MD

ZIP code 20877 is the post office name for Gaithersburg, MD. 69,825 people live in Gaithersburg. Typical household income is $112,467. A typical home costs $496,500.

  • Stronger than most towns on: Diversity & community, Public transit and Home internet and working from home.
  • Weaker than most towns on: Space and yard size, Cost of living and Pleasant weather for being outdoors.

See all figures for Gaithersburg

Other ZIP codes in Gaithersburg

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ZIP code list from SimpleMaps US Zips. Population is a US Census Bureau estimate. These are estimates, so check official sources before you decide.