It was named for John Cummings, who was an associate judge in the local court system at the time.

Early industry in the county included quarries of flag and building stone and lumber.

Michael and Henry Wolf arrived in the area from Berks County in 1817.

They helped to establish Waterville by building a sawmill and clearing some land for farming.

Other early business establishments were two stores and a hotel, which stands today.

The site which became the Upper Pine Bottom State Park was the "Upper Pine Bottom Class B Public Campground" by 1924 (Class B Public Campgrounds were on secondary highways and had a lean-to shelter for camping).

During the Great Depression, the Civilian Conservation Corps built a pavilion at the site in 1936, but it is no longer extant.

Pennsylvania Route 44 passes through the western part of the township, following Pine Creek south from Waterville and the side canyon of Upper Pine Bottom Run west from Waterville.

Waterville is an unincorporated community in the dense woods of the Glaciated Allegheny Plateau in south-central Cummings Township.

Pennsylvania Route 44 travels through Waterville, heading south-southeastward along Pine Creek to the borough of Jersey Shore.

22.9% of all households were made up of individuals, and 11.8% had someone living alone who was 65 years of age or older.