Maryland Police Frequencies

Below are any Maryland statewide conventional or trunking systems followed by Maryland police frequencies sorted by county. To find your local Maryland police frequencies, navigate to your county and enter the frequencies you find into your police scanner. Please feel free to submit corrections!





Maryland is a state in the Mid-Atlantic region of the United States, bordering Virginia, West Virginia, and the District of Columbia to Maryland's south and west; Pennsylvania to Maryland's north; and Delaware to Maryland's east. The state's largest city is Baltimore, and Maryland's capital is Annapolis. Among Maryland's occasional nicknames are Old Line State, the Free State, and the Chesapeake Bay State. The state is named after the English queen Henrietta Maria of France.One of the original Thirteen Colonies, Maryland is considered the birthplace of religious freedom in America. The state was founded by George Calvert, a trusted foreign minister and personal friend of King James I. When Calvert converted to Catholicism in 1625 it meant his disqualification from holding public office, but his friendship with King James remained.