Grand Gedeh is a county in the eastern portion of the West African nation of Liberia. One of 15 counties that constitute the first-level of administrative division in the nation, it has three districts. Zwedru (formerly Tchien) serves as the capital with the area of the county measuring . As of the 2008 Census, it had a population of 126,146, making it the ninth most populous county in Liberia. Grand Gedeh has lower tropical forests which has mid size hills composed of various valleys and water courses. These forests receive a very high rainfall ranging from to per year.