MARYLAND
Browse Maryland County Histories
Click on a county to see its history. Jurisdictions with resources have a green border. Those displayed in gray are counties that are no longer active under their original designation; to delve deeper into the various reasons for their change, please visit our Understanding Extinct Counties page.
ALLEGANY COUNTY
ANNE ARUNDEL COUNTY
BALTIMORE CITY
BALTIMORE COUNTY
CALVERT COUNTY
CAROLINE COUNTY
CARROLL COUNTY
CECIL COUNTY
CHARLES COUNTY
(EXTINCT, 1650–1654) DORCHESTER COUNTY DURHAM COUNTY
(EXTINCT, 1669–1672) FREDERICK COUNTY GARRETT COUNTY HARFORD COUNTY HOWARD COUNTY KENT COUNTY MONTGOMERY COUNTY QUEEN ANNE’S COUNTY ST. MARY’S COUNTY SOMERSET COUNTY TALBOT COUNTY WASHINGTON COUNTY WICOMICO COUNTY WORCESTER COUNTY
(EXTINCT, 1650–1654) DORCHESTER COUNTY DURHAM COUNTY
(EXTINCT, 1669–1672) FREDERICK COUNTY GARRETT COUNTY HARFORD COUNTY HOWARD COUNTY KENT COUNTY MONTGOMERY COUNTY QUEEN ANNE’S COUNTY ST. MARY’S COUNTY SOMERSET COUNTY TALBOT COUNTY WASHINGTON COUNTY WICOMICO COUNTY WORCESTER COUNTY