Atlas Township is located in Pike County, Illinois.

As of the 2010 census, its population was 563 and it contained 321 housing units.

[2] According to the 2010 census, the township has a total area of 67.88 square miles (175.8 km2), of which 63.71 square miles (165.0 km2) (or 93.86%) is land and 4.17 square miles (10.8 km2) (or 6.14%) is water.

[2] According to the census of 2017, the population is 417.

This Pike County, Illinois location article is a stub.