Bellefontaine (pronounced bell-FOUN-tin; ) is a city located in Logan County, Ohio, United States. As of the 2000 census, the city had a total population of 13,069. It is the county seat of Logan County, and the center of the Bellefontaine Micropolitan Statistical Area (as defined by the United States Census Bureau in 2003). The highest point in Ohio (Campbell Hill) is within the city limits of Bellefontaine.