The Tema Metropolis is a coastal district situated about 30 kilometers East of Accra, the Capital City of Ghana. It shares boundaries on the North-East with the Kpone Katamanso and Ningo-Prampram Districts, South- West by Ledzokuku Krowor Municipal, North-West by Adentan Municipal and the Ga East Municipal, and the South by the Gulf of Guinea. The Ashaiman Municipal is an in-lock enclave within the Tema Metropolis. The Metropolis covers an area of about 396km2 with Tema as its capital and lies within the coastal savannah zone.
The Greenwich Meridian (i.e. Longitude 0º) passes through the Metropolis, which meets the equator or latitude 0° in the Ghanaian waters of the Gulf of Guinea. The Metropolis proximity to the sea with its low lying terrain which projects into the sea makes it a natural endowment for a harbour. This evidently informed the decision of the construction of the Tema Harbour in 1957, making the Metropolis “the Eastern Gateway of Ghana”.
According to the 2010 Population and Housing Census, the total population of the Tema Metropolitan Assembly was 292,773. This consists of 139,958 males representing 47.8% and 152,815 females representing 52.2%. The Metropolis has no rural settlements. The 2014 projected population of the Metropolis is pegged at 324,429 persons. The distribution of the population of Tema Metropolitan area shows that the age group 25-29 recorded the highest population with 11.4 percent whilst 90-94 and 95-99 age groups had the least population which represents 0.1 percent respectively. On average, there are more females than males in the metropolitan with a male-female ratio of 92:100. This means that for every 100 females in the Metropolitan area, there are approximately 92 males.