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Posen is a village in Cook County, Illinois, United States. Posen is the German-language name for the western Polish city of Poznan. The population was 4,730 at the 2000 census. Posen, Illinois is 6 miles SE of Oak Lawn, Illinois and 16 miles S of Chicago, Illinois. It is in Cook county. The village is part of the Chicago metro area.

In 2000, Posen had a median family income of $57,727. Notably, Posen is home to a disproportionate number of well-off single people. In Posen, about 51% of adults are married. The size of households in Posen is larger than most. Kids are seemingly everywhere in the village. Approximately 22% of Posen is non-white. The village is home to people of a variety of races.

Learn more about this city.

City of Posen, IL official site

City of Posen, IL newspaper

County of Posen, IL official site

State of Illinois official site