Koekelberg (French pronunciation:[kukəlˈbɛʁk]; Dutch pronunciation:[ˈkukəlˌbɛrx]) is one of the nineteen municipalities of the Brussels-Capital Region in Belgium. On January 1, 2006, the municipality had a total population of 18,157. The total area is 1.17km² which gives a population density of 15,486 inhabitants per km².