Troy is a city in and the county seat of Pike County, Alabama, United States. It was formally incorporated on February 4, 1843. Between 1763 and 1783, the area where Troy sits was part of the colony of British West Florida. After 1783, the region fell under the jurisdiction of the newly created United States of America. As of the 2020 census, its population was 17,727, down from 18,033 in 2010. The 2022 estimated population was 17,774.