The Town of Ava is in the north central part of the county. Ava is north of the City of Rome.
The town was formed on May 12, 1797 from land from the Town of Boonville and the major settlement in the area, Ava Corners.
Legendary Revolutionary War scout and Indian fighter Nat Foster, who is a possible inspiration for Cooper's "Natty Bumpoo" was buried in a family plot just west of Ava Corners on the West Ava Road, a modern marker placed there in 1937 by Rev. Clarence Mason, his biographer.
The population began with 9 people, grew to its largest 1,260 in 1860, but by 1920, was 610. In 1905, Hiram Cronk, the last veteran of the War of 1812, died in Ava.