Bainbridge is a census-designated place (CDP) in Bainbridge Township, Geauga County, Ohio, United States. As of the 2010 census, the CDP had a population of 3,267.HistoryA variant name of Bainbridge was "Bissells". A post office called "Bissels" was established in 1826, and remained in operation until 1906. Bainbridge derives its name from the naval hero of the War of 1812, Commodore William Bainbridge.GeographyBainbridge is located in southwestern Geauga County at, at the center of Bainbridge Township. U.S. Route 422, a four-lane expressway, passes through the center of the CDP, leading east to Warren and west to downtown Cleveland. Access to US 422 is from Ohio State Route 306 in the center of Bainbridge; 306 leads north 9mi to Chesterland and south 5mi to Aurora.According to the United States Census Bureau, the Bainbridge CDP has a total area of 9.0sqkm, of which 8.8sqkm is land and 0.2sqkm, or 2.09%, is water.