College Corner is a village in Butler and Preble counties in the southwestern part of the U.S. state of Ohio, 5 miles (8 km) northwest of Oxford. The population was 387 at the 2020 census. The village lies on the state line with Indiana, where it borders the town of West College Corner. The public school, part of the Union County–College Corner Joint School District, is bisected by the state line and is operated jointly with Indiana authorities.