Hanover is a town in Chautauqua County, New York, United States.

[3] The New York State Thruway (Interstate 90), US 20 and NY 5 pass through the north part of the town.

Law enforcement in the town of Hanover is provided by the Chautauqua County Sheriff's Office and the New York State Police.

Its borders also run in a zig zag pattern to the south on Buffalo Road south of the New York State Thruway with the county's border with the Cattaraugus Indian Reservation.

Irving also handles all calls on the Thruway in a contract between the Thruway Authority, Irving Volunteer Fire, Silver Creek EMS, Silver Creek Volunteer Fire, Alstar, and the New York State Police.

Sunset Bay Volunteer Fire Company, an independent fire company in the town that handles all calls within Sunset Bay and outside it on NY 5/US 20 from east of Hanford Road to the western side of Seneca Road.

It borders the lines of Irving, Hanover Center, and Silver Creek to the west, east, and south.

It also provides fire and EMS protection in the towns of Villenova and Arkwright.

The squad provides EMS protection to town residents north of King Road as well per contract with the NYS Thruway Authority.