Harbel is a town in Margibi County, Liberia. It lies along the Farmington River, about 15 miles upstream from the Atlantic Ocean. It was named for the founder of The Firestone Tire & Rubber Company, Harvey S. Firestone, and his wife, Idabelle. Since 1926, Harbel has been home to a massive natural rubber plantation which is still operated by the Firestone subsidiary of Bridgestone. Roberts International Airport is 2 miles southwest of Harbel. As of the 2008 census, Harbel had a population of 25,309.