Housing developments around the lake outside of the borough are part of the Conneaut Lakeshore census-designated place, which along with the lake extends north into Summit Township.

The unincorporated community of Shermansville is in the northwestern part of Sadsbury Township.

[4] As of the census[6] of 2000, there were 2,941 people, 1,274 households, and 845 families residing in the township.

There were 2,177 housing units at an average density of 91.8 per square mile (35.4/km2).

27.9% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older.