Fort Wayne is a city in the U.S. state of Indiana and the county seat of Allen County. The population was 255,824 as of the July 1, 2011 Census estimate making it the 74th largest city in the United States and the second-largest in Indiana after Indianapolis. The municipality is located in northeastern Indiana, approximately 18 miles (29 km) west of the Ohio border and 50 miles (80 km) south of the Michigan border.