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ZIP code 20634

Great Mills, MD · St. Mary's County

About ZIP code 20634

  • ZIP code 20634 is in Great Mills, St. Mary's County, Maryland.
  • About 7,088 people live in it, which is 391.4 people per square mile.
  • Time zone: Eastern Standard Time.
  • The middle of the ZIP code is at 38.246, -76.494.

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.

Callaway, MD

The closest town we cover is Callaway, MD, about 2 miles from the middle of this ZIP code. 930 people live in Callaway. Typical household income is $160,341. A typical home costs $364,700.

  • Stronger than most towns on: Jobs and income, Clean air and low disaster risk and Home internet and working from home.
  • Weaker than most towns on: Cost of living, Dining and entertainment and Health and medical care.

See all figures for Callaway

Other ZIP codes in Callaway

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.