Grandview Heights, or simply Grandview, is a city in Franklin County, Ohio, United States. The population was 8,085 at the 2020 census. T…Grandview Heights, or simply Grandview, is a city in Franklin County, Ohio, United States. The population was 8,085 at the 2020 census. The city was originally part of Marble Cliff, one of the first suburbs of Columbus, which settled as a community in 1890 and incorporated as the "Hamlet of Marble Cliff" in 1901. Grandview Heights became a separate village in 1906, and a city in 1931.