What is the Capital of Belgium? The capital of Belgium is Brussels, which was founded 979. Brussels has been the capital since 1989. Brussels is the largest city in Belgium and Houses the main European Union institutions Brussels is located at 50.8503° N, 4.3517° E at an elevation of 43'. 15 Facts Every Foreigner Should Know About Capital of Belgium #1. In Capital of Belgium , size doesn’t count Capital of Belgium is a very small Capital It takes 2 hours to drive from East to West and maximum 3 hours to drive from North to South. But one can be stuck more than two hours in daily traffic jam in Brussels and this doesn’t mean that Belgium Capital doesn’t have much to offer… #2.Capital of Belgium has 3 official languages It is officially a trilingual country. Part of Belgian speak Dutch, you may call it Flemish, another part speak French and a littl...