Of is a municipality and district of Trabzon Province, Turkey. Its area is 258 km², and its population is 43,591. It is located in the eastern part …Of is a municipality and district of Trabzon Province, Turkey. Its area is 258 km², and its population is 43,591. It is located in the eastern part of the province and is an important historical district of the province. The mayor is Salim Salih Sarıalioğlu.