Postira is a village and a municipality in Croatia in the Split-Dalmatia County on the island of Brač. The village of Postira is located on the …Postira is a village and a municipality in Croatia in the Split-Dalmatia County on the island of Brač. The village of Postira is located on the northern coast of the island of Brač, eight kilometers from the island's port of Supetar. It is connected with nearby villages Pučišća, Splitska and Dol as well as with the city of Supetar with paved road, where local bus lines operate.