Gabon has a population that is estimated at 1,545,255. Historical and environmental factors caused Gabon's population to decline between 1900 and 1940.Gabon has one of the lowest population densities of any country in Africa, and the fourth highest Human Development Index in Sub-Saharan Africa.
Gabon is divided into nine provinces, which they are further subdivided into 50 departments. The president appoints the provincial governors, the prefects, and the subprefects.
Most of the health services of Gabon are public, but there are some private institutions, of which the best known is the hospital established in 1913 in Lambaréné by Albert Schweitzer. The hospital is now partially subsidized by the Gabonese government.