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. The area of the county measures 8,772 square kilometres. As of the 2022 Census, it had a population of 467,502, making it the third-most populous county in Liberia. The county was organized in 1964 and is important for its mining industry.