Some of the cities, towns, and places in Delaware County are Africa, Alum Creek, Ashley, Bellepoint, Berkshire, Berlin, Brown, Carpenter's Mill, Center Village, Cheshire, Coles Mills, Columbus, Concord, Condit, Cones Mills, Delaware, Dublin, East Liberty, Edinburgh, Fairfield County, Franklin County, Galena, Genoa, Harlem, Hyatts, Kilbourne, Kingston, Kingston Center, Leonardsburg, Lewis Center, Liberty, Marlboro, Norton, Olive Green, Orange, Ostrander, Oxford, Porter, Powell, Radnor, Rome, Scioto, Shawnee Hills, Stratford, Sunbury, Thompson, Trenton, Troy, Union County, Vans Valley, Westerville, White Sulphur
Delaware County is a county located in the central portion of the U.S. state of Ohio. It is a frequent placeholder on the List of highest-income counties in the United States. As of the 2020 census, the population was 214,124. Its county seat and largest city is Delaware. The county was formed in 1808 from Franklin County, Ohio. Both the county and its seat are named after the Delaware Indian tribe. Delaware County was listed as the 35th wealthiest county in the United States in 2020. Delaware County is included in the Columbus, Ohio, metropolitan area. U.S. President Rutherford B. Hayes was born and raised in Delaware County. It is also home to the Columbus Zoo and Aquarium.