Peru illinois map. As of the 2010 census the population was 6721. Sauget is located at 38587013 90166690. See our list of illinois agents who serve the areas you are most interested in. Find local coldwell banker real estate agents in illinois who can help you buy or sell a home.
According to the 2010 census sauget has a total area of 4594 square miles 1190 km 2 of which 423 square miles 1096 km 2 or 9208 is land and 0364 square miles 094 km 2 or 792 is water.