Pelham Ontario is situated in the centre of the Niagara Peninsula, above the Niagara Escarpment. In 1970 Effingham, Fenwick, Fonthill, North Pelham and Ridgeville amalgamated into the single community of Pelham.
Generally a farming community, the Twelve Mile Creek originates from within Pelham and flows northward towards Lake Ontario. Pelham is home to the Comfort Maple, believed to be the oldest Sugar Maple tree in Canada. Pelham is also home to Shorthills Provincial Park.