Carroll County Maryland is covered by a total of 16 ZIP Codes. There are 12 ZIP Codes in Carroll County that extend into adjacent counties (Baltimore County, Frederick County, Howard County, and Montgomery County). Of the ZIP codes within or partially within Carroll County there are 15 Standard ZIP Codes and 1 PO Box ZIP Codes. Data Updated September 15, 2024
Click on the ZIP Codes in the interactive map to view more information. The map control in the upper right corner can be used to toggle map layers on and off. The red outline is the border of Carroll County and can be turned on and off. Each type of postal code can also be turned on and off.
| ZIP Code | ZIP Code City/Town | ZIP Code Type | |||
|---|---|---|---|---|---|
| Finksburg | Standard | |||
| Hampstead | Standard | |||
| Lineboro | PO Box | |||
| Manchester | Standard | |||
| Marriottsville | Standard | |||
| Reisterstown | Standard | |||
| Upperco | Standard | |||
| Westminster | Standard | |||
| Westminster | Standard | |||
| Keymar | Standard | |||
| Mount Airy | Standard | |||
| New Windsor | Standard | |||
| Sykesville | Standard | |||
| Taneytown | Standard | |||
| Union Bridge | Standard | |||
| Woodbine | Standard |