Etna (formerly Miller's Settlement and Columbia, sometimes referred to as Aetna^[1]) is an unincorporated community in Tompkins County, New York, United States. It lies at an elevation of 1020 feet (311 m). 42°29′06″N 76°23′01″W / 42.48500°N 76.38361°W / 42.48500; -76.38361