Guilford Lake is an unincorporated community and census-designated place in Hanover Township, Columbiana County, Ohio, United States. It surrounds the eponymous Guilford Lake reservoir. The population was 1,188 at the 2020 census.
History
Guilford Lake was constructed as a canal feeder reservoir for the Sandy and Beaver Canal in 1834. It took its name from Edward H. Gill, chief engineer of the canal company. When the canal era ended, local farmers breached the dam, drained the lake, and used the fertile lake bottom for farm land. In 1932, a new dam was completed and the land surrounding it was designated a state park in 1949. The community was first listed as a CDP for the 2020 census.
Education
Children in Guilford Lake are served by the public United Local School District, which includes one elementary school, one middle school, and United High School.
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