The population was 2,809 at the time of the 2020 census,[2] This township surrounds but does not include the borough of Ernest.

The Kintersburg Covered Bridge was listed on the National Register of Historic Places in 1979.

[5] Rayne township is predominantly rural with several small unincorporated villages including: As of the census[7] of 2000, there were 3,292 people, 1,220 households, and 957 families residing in the township.

There were 1,318 housing units at an average density of 27.9 per square mile (10.8/km2).

19.3% of all households were made up of individuals, and 6.8% had someone living alone who was 65 years of age or older.