Carroll County ZIP Codes
Maryland, United States · 13 codes
Carroll County in Maryland has 13 ZIP codes, from 21048 to 21797, serving 13 places.
ZIP codes in Carroll
Frequently asked questions
What is the ZIP code of Carroll?
Carroll has 13 ZIP codes, from 21048 to 21797. The table lists the places each one serves.
How many places are listed in Carroll County?
13 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.