Doctor density varies by specialty and location. Ohio has 1,255 practicing cardiologists. Broken out by city, cardiology doctor density in Akron is 60, in Alliance is 4, in Ashtabula is 6, in Athens is 12, in Avon is 10, in Barberton is 17, in Beachwood is 50, in Beavercreek is 23, in Bedford is 6, in Bellbrook is 1, in Bellefontaine is 6, in Bellevue is 8, in Bowling Green is 12, in Bucyrus is 3, in Cambridge is 8, in Canton is 36, in Centerville is 17, in Chardon is 9, in Chillicothe is 12, in Cincinnati is 184, in Circleville is 16, in Cleveland is 311, in Cleveland Heights is 6, in Columbus is 173, in Conneaut is 4, in Cortland is 2, in Coshocton is 6, in Cuyahoga Falls is 4, in Dayton is 81, in Delaware is 13, in Dublin is 55, in East Liverpool is 11, in Eaton is 1, in Elyria is 29, in Euclid is 8, in Fairfield is 14, in Fairview Park is 11, in Findlay is 4, in Fostoria is 3, in Fremont is 23, in Gahanna is 16, in Greenville is 10, in Grove City is 8, in Hamilton is 30, in Harrison is 1, in Hilliard is 8, in Hillsboro is 11, in Independence is 4, in Kettering is 28, in Lakewood is 12, in Lancaster is 9, in Lebanon is 12, in Lima is 22, in Logan is 2, in London is 1, in Lorain is 25, in Mansfield is 16, in Marietta is 4, in Marysville is 11, in Mason is 5, in Massillon is 18, in Maumee is 6, in Medina is 19, in Mentor is 8, in Middleburg Heights is 31, in Mount Vernon is 8, in Napoleon is 14, in Newark is 7, in Norwalk is 7, in Oregon is 24, in Oxford is 11, in Painesville is 8, in Perrysburg is 28, in Pickerington is 4, in Port Clinton is 16, in Portsmouth is 24, in Ravenna is 17, in Rocky River is 8, in Salem is 8, in Sandusky is 14, in Sidney is 8, in Solon is 3, in Springboro is 2, in Springfield is 13, in Steubenville is 10, in Strongsville is 19, in Sylvania is 11, in Tiffin is 7, in Toledo is 77, in Urbana is 2, in Van Wert is 11, in Warren is 20, in Wauseon is 18, in Westerville is 19, in Westlake is 51, in Willoughby is 20, in Wilmington is 11, in Wooster is 8, in Xenia is 6, and in Zanesville is 9.

Ohio’s northern border is Lake Erie, one of the Great Lakes. Columbus is the capital city, and the population of Ohio is 11,464,042. Ohio is the birthplace of seven presidents, all born here before 1900. In 1803, President Jefferson approved Ohio’s boundaries and constitution, but congress did not formally admit Ohio as a state. Ohio was not officially accepted into the United States until retroactively in 1953 by President Eisenhower. Visitors drive through covered bridges, see earthen effigy mounds and other historical monuments, or go hiking, fishing, boating or golfing in Ohio’s state parks. The Goodyear Blimp in docks in Akron, the world’s largest crystal ball is in Westerville, and the SunWatch Indian Village Archaeological Park is a popular site in Dayton.

According to 2005 Census estimates, Ohio has a population of 11,464,042. Of this population, 2,685,258 are under the age of 18 and 1,522,387 are at or above the age of 65.