The continent of Africa is the world's second-largest and second most-populous continent. At around 30 million km² (approx 12 million sq mi) including adjacent islands, it covers 6% of the Earth's total surface area and over 20% of the total land area.
Africa is surrounded by the Mediterranean Sea to the north, the Suez Canal and the Red Sea to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west. There are 53 countries, including Madagascar and various island groups, associated with the continent. With 922 million people (stats from 2005) in 61 territories, it accounts for between 14-15% of the world's human population.
Main source - Wikipeadia.com