Preble County, Ohio

Preble County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 42,270. Its county seat is Eaton. The county was formed on February 15, 1808 from portions of Butler and Montgomery Counties. It is named for Edward Preble, a naval officer who fought in the American Revolutionary War and against the Barbary Pirates.GeographyAccording to the U.S. Census Bureau, the county has a total area of, of which is land and (0.5%) is water.Adjacent countiesDarke County (north)Montgomery County (east)Butler County (south)Union County, Indiana (southwest)Wayne County, Indiana (northwest)Rivers and streamsBig Ole Fat CreekFour Mile CreekHarker's RunSeven Mile CreekTwin CreekPrices CreekGoose's CreekBlair streamLake FarvaJoey creek