Datça is a municipality and district of Muğla Province, Turkey. Its area is 436 km², and its population is 25,029. The town center is situated mi…Datça is a municipality and district of Muğla Province, Turkey. Its area is 436 km², and its population is 25,029. The town center is situated midway through the peninsula which carries the same name as the district and the town. It was a nahiya of Marmaris District until 1928. Datça's first center in village of Reşadiye till 1947, when it was moved to present borough of İskele.