Chocolate is incredibly popular. In the U.S. alone, chocolate sales reached $10.3 billion in 2013. Chocolate comes from cocoa which is grown on trees in countries on the equator. Most of the worldâs cocoa supply comes from just two West African countries, CÃ´te dâIvoire and Ghana. Both countries are the worldâs top cocoa-producing countries, supplying over 55 percent of the worldâs cocoa.