Named after the State of Maryland in the United States, it was an independent country as the Republic of Maryland from 1854 until it joined Liberia in 1857. The most populous city in the county is Pleebo with 22,963 residents, while Maryland's County Superintendent is Nazarine Tubman. The county is bordered by Grand Kru County to the west and River Gee County to the north. The eastern part of Maryland borders the nation of Ivory Coast, separated by the Cavalla River.
Scientific will launch PLEEBO 1857 on March 25, 2017 during the biggest fashion event to hit Africa in 2017 - Runway Ghana International to be held in Accra.