Audubon Township (T10+N½T9N R1W) is located in Montgomery County, Illinois, United States.

As of the 2010 census, its population was 552 and it contained 253 housing units.

[2] According to the 2010 census, the township has a total area of 53.96 square miles (139.8 km2), of which 53.94 square miles (139.7 km2) (or 99.96%) is land and 0.02 square miles (0.052 km2) (or 0.04%) is water.

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