Waterloo is a town in Seneca County, New York, United States.

[4] The town and its major community are named after Waterloo, Belgium, where Napoleon was defeated.

The Town of Waterloo is situated on the western border of the county, east of Geneva.

The Sullivan Expedition passed through the area in 1779 to destroy the natives and their villages.

After the war, the area was in the Central New York Military Tract, reserved for veterans.

New York State Route 96 is a highway that turns southward at Waterloo village.

28.8% of all households were made up of individuals, and 11.9% had someone living alone who was 65 years of age or older.