Springboro is an affluent city in Warren and Montgomery counties in the U.S. state of Ohio. It had a population of 19,062 at the 2020 census. Springboro is a suburb located between Cincinnati and Dayton and is part of the Miami Valley, lying at the center of Greater Cincinnati and Metro Dayton. Most of Springboro is served by the Springboro Community City School District, which oversees the city's public high school, Springboro High School.