Posušje is a town and municipality in Bosnia and Herzegovina, located in the West Herzegovina Canton of the Federation of Bosnia and Herzegovina entity. Name Posušje is derived from suša (Croatian word for drought) .The area of Posušje was historically dry area with water-supply problems. The problem was solved building an artificial lake in Tribistovo in 1989. The last census conducted in 1991 placed the population of the Posušje town at 3,913 residents, of which 3,838 were Croats. Posušje is 29 km from Široki Brijeg, 54 km from Mostar,10 km from Imotski and 71 km from Makarska.