Maryland State Government--metro Regional Office 3451 Court House Dr Ellicott City, MD 21043 Phone : (410) 461-0410 Business Category Fire Departments Government Offices & Public Schools Maryland State Government--multi Service Centers District Courts, Ellicott City Msc, State Fire Marshal 3541 Courthouse Dr Ellicott City, MD 21041 Phone : (410) 461-0410 Business Category Fire Departments Government Offices & Public Schools