Berwyn is a city in Cook County, Illinois, co-existent with Berwyn Township, which was formed in 1901 after breaking off from Cicero Township. As of the 2000 census, the city had a total population of 54,016. Berwyn will celebrate its 100th Anniversary in 2008. Berwyn apartments for rent comparison page shows most up to date rent information on Berwyn apartments and houses. Rent information is obtained from multiple rental sources but we cannot guarantee their accuracy.