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is a city in Warren and Montgomery counties in the U.S. state of Ohio. It is in Warren County's Clearcreek and Franklin Townships and Montgomery County's Miami Township. As of the 2000 census, the city had a population of 12,380, up from 6,574 in 1990 and 8,000 in 1980.
The Warren County portion of Springboro is part of the Cincinnati–Middletown, OH-KY-IN Metropolitan Statistical Area, while the Montgomery County portion is part of the Dayton, OH Metropolitan Statistical Area. The town has one school district with one high school, Springboro High School.
According to the United States Census Bureau, the city has a total area of 8.8 square miles (22.8 km²), all of it land.