This is a list of the Maryland state historical markers in Carroll County.

This is intended to be a complete list of the official state historical markers placed in Carroll County, Maryland by the Maryland Historical Trust (MHT). The locations of the historical markers, as well as the latitude and longitude coordinates as provided by the MHT's database, are included below. There are currently 20 historical markers located in Carroll County.

Marker title ImageCityLocation Topics Birthplace of William Henry RinehartUnion Bridge, MarylandQuaker Hill Road at Ladiesburg Road (east side)BridgeportTaneytown, MarylandMD 140 (Taneytown Pike), south side, 200 ft east of Bullfrog RoadCorbit's ChargeWestminster, MarylandMD 32 (Washington Road) at East Main Street, southeast cornerGerman ChurchManchester, MarylandMD 30, .2 miles north of MD 27Headquarters Second Corps Army of the PotomacUniontown, MarylandUniontown Road (south side), 0.5 miles east of Jasontown RoadHenryton CenterMariottsville, MarylandHenryton Road at Henryton Center RoadHenryton School of Practical NursingMarriotsville, MarylandHenryton Road at Henryton Center RoadHood's MillWoodbine, MarylandMD 97 (west side), 0.4 miles south of Eden Mill RoadJust Government LeagueWestminster, MarylandMD 31 (New Windsor Road) at MD 140 (Taneytown Pike)ManchesterManchester, MarylandMD 30 (Main Street) at Westminster/ York Streets, northwest cornerMeade's HeadquartersTaneytown, MarylandMD 194 (FSK Hwy), east side, 500 ft. north of Fringer RoadPipe Creek MeetingUnion Bridge, MarylandQuaker Hill Drive (east side), 0.2 miles south of Ladiesburg RoadRobert StrawbridgeNew Windsor, MarylandWakefield Valley Road (south side), 100 ft. east of MD 31Spring GardenHampstead, MarylandMD 30 (Main Street) at Black Rock Road, northeast cornerStrawbridge Log Meeting House SiteNew Windsor, MarylandMD 407 (Marston Road) north side, 0.4 miles south of MD 31 (New Windsor Road)Terra RubraKeymar, MarylandMD 194 (Francis Scott Key Hwy) at Keysville-Bruceville Road, northwest cornerThe First Complete County Rural Free Delivery ServiceWestminster, MarylandMD 32 (Main Street) at Longwell Avenue, northeast cornerThe First Reaping MachineUnion Bridge, Maryland200 W Locust St.Union MillsUnion Mills, MarylandMD 97 (east side), 0.2 miles south of Old Hanover RoadWestminsterWestminster, MarylandN. Center Street, between N. Court Street and North Street, southeast side

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