As of the 2020 census, its population was 4,563 and it contained 1,829 housing units.

[3] Lincoln Township was established in 1872.

[5] According to the 2010 census, the township has a total area of 42.56 square miles (110.2 km2), of which 42.39 square miles (109.8 km2) (or 99.60%) is land and 0.16 square miles (0.41 km2) (or 0.38%) is water.

[6] (This list is based on USGS data and may include former settlements.)

This Newton County, Indiana location article is a stub.