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ZIP code 21770

Monrovia, MD · Frederick County

About ZIP code 21770

  • ZIP code 21770 is in Monrovia, Frederick County, Maryland.
  • About 8,751 people live in it, which is 295.1 people per square mile.
  • Time zone: Eastern Standard Time.
  • The middle of the ZIP code is at 39.352, -77.258.

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.

Monrovia, MD

ZIP code 21770 is the post office name for Monrovia, MD. 3,568 people live in Monrovia. Typical household income is $207,153. A typical home costs $805,100.

  • Stronger than most towns on: Diversity & community, Home internet and working from home and Long, healthy lives.
  • Weaker than most towns on: Short commute, Housing affordability and Cost of living.

See all figures for Monrovia

Nearby ZIP codes

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