Ava is a town in Oneida County, New York, United States. The population was 680 at the 2020 census. The Town of Ava is in the north central part of the county. Ava is north of the city of Rome. Ava was formed from Boonville on May 12, 1846. It was the second to last town to be created in the county, followed only by Forestport in 1869.