Population distribution Population density increased steadily from 36 per square kilometer in 1970 to 52 per square kilometer in 1984. In 1990 63 persons per square kilometer was the estimate for Ghana's overall population density. These averages did not reflect variations in population distribution. For example, while the Northern Region, one of ten administrative regions, showed a density of seventeen persons per square kilometer in 1984, in the same year Greater Accra Region recorded nine times the national average of 52 per square kilometers. As was the case in the 1960 and 1970 figures, the greatest concentration of population in 1984 was to the south of the
Kwahu Plateau. The highest concentration of habitation continued to be within the Accra-Kumasi-Takoradi triangle, largely because of the economic productivity of the region. All of Ghana's mining centres, timber-producing deciduous forests, and cocoa-growing lands lie to the south of the Kwahu Plateau. The Accra-Kumasi-Takoradi triangle is linked to the coast by rail and road systems—making this area an important magnet for investsment and labor. Urban areas in Ghana have customarily been supplied with more amenities than rural locations. Consequently, Kumasi, Accra, and many settlements within the southern economic belt attracted more people than the savanna regions of the north; only Tamale in the north has been an exception. The linkage of the national electricity grid to the northern areas of the country in the late 1980s may help to stabilize the north-to-south flow of internal migration. Between 1965 and 1989, a constant 45% of Ghana total female population was of childbearing age. Population Estimates by Sex and Age Group (01.VII.2015) (Data based on the 2010 Population Census.): == Vital statistics ==