Be the first in the room — members see you arrive.
Join the roomSullivan is a city in Hamilton Township and the county seat of Sullivan County, Indiana, United States. As of the 2020 census, Sullivan had a population of 4,264. It is part of the Terre Haute metropolitan area.
Connected
Not who you're looking for? Others named Sullivan: human settlement in Madison County, New York, United States · unincorporated community in West Virginia, United States · city in Illinois · American band
