Living 20.4% By Indy Staff Thu Feb 05, 2009 | 12:00am Share this:Click to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to email a link to a friend (Opens in new window)Click to print (Opens in new window) 20.4% The percentage of the Earth’s total land area that Africa covers. source: wikipedia.org/wiki/Africa. Add to Favorites