Some of the cities, towns, and places in Highland County are Allensburg, Belfast, Berrysville, Boston, Bridges, Brushcreek, Buford, Careytown, Carmel, Centerfield, Clay, Concord, Danville, Dodson, Dodsonville, East Danville, East Monroe, Elmville, Fairfax, Fairfield, Fairview, Folsom, Gist Settlement, Greenfield, Hamer, Hariett, Harwood, Highland, Highland Holiday, Hillsboro, Hoagland, Hollowtown, Jackson, Leesburg, Liberty, Lynchburg, Madison, Marshall, Mowrystown, New Market, New Petersburg, Paint, Penn, Pricetown, Rainsboro, Rocky Fork Point, Russell, Salem, Samantha, Sardinia, Shackleton, Sinking Spring, Stringtown, Sugar Tree Ridge, Taylorsville, Union, Washington, Whiteoak, Willettsville

Highland County is a county located in the U.S. state of Ohio. As of the 2010 census, the population was 43,589. Its county seat is Hillsboro. The county is named for the topography which is hilly and divides the watersheds of the Little Miami and Scioto Rivers.