Bong is a county in the north-central portion of the West African nation of Liberia. One of 15 counties that comprise the first-level of administrative division in the nation, it has twelve districts. Gbarnga serves as the capital with the area of the county measuring . As of the 2008 Census, it had a population of 328,919, making it the third most populous county in Liberia.
Named after Mount Bong in the southern portion of the county, it is bordered by Lofa and Gbarpolu counties to the north, Margibi and Montserrado counties to the west, Grand Bassa County to the south, and Nimba County to the east. The northeast part of Bong borders the nation of Guinea. Created in 1964, the County Superintendent is Ranney Jackson. Bong County’s flag is purple, signifying the dawn, and orange, signifying the County’s newness. The two geological instruments in the white field portion of the flag symbolize Bong County’s mining industry.