Calvert County ZIP Codes
Maryland, United States · 14 codes
Calvert County in Maryland has 14 ZIP codes, from 20610 to 20754, serving 14 places.
ZIP codes in Calvert
Frequently asked questions
What is the ZIP code of Calvert?
Calvert has 14 ZIP codes, from 20610 to 20754. The table lists the places each one serves.
How many places are listed in Calvert County?
14 places.
Source: GeoNames postal codes (CC BY 4.0), geonames.org, retrieved 2026-10-22. Place coordinates are approximate. Check with the national postal service before sending anything valuable.