Coffee is an international drink. There are few, if any, places you can travel where coffee is not an appreciated beverage. However, the tree itself is a bit prejudice about the type of environment in which it will produce. It only grows and produces well in the tropics.
The majority of coffee production in the regions of Ethiopia is from the wild coffee tree forests and from there has spread across the world. However, because of the necessary growing conditions, which require plenty of sunshine and rain, the coffee trees are only found in tropical or sub-tropical locations. There is a narrow strip of about 25 degrees both North and South of the equator where basically all of the coffee in the world is produced. It is incredible that so much product can be produced from such a small amount of eligible environment. Coffee actually is the second highest commodity in the world next to oil when measured in dollar value. This lucrative product does come from some of the world's under-developed and poor countries oddly enough.