St. Adalbert Church is a historic church of the Roman Catholic Archdiocese of Chicago. The church is located on 17th Street between Paulina Street and Ashland Avenue in the Pilsen neighborhood of Chicago, Illinois. St. Adalbert has served generations of Polish immigrants and their American-born children; at its peak, parish membership numbered 4,000 families with more than 2,000 children enrolled in the school. Today, the church is an anchor for the Mexican immigrants that have made the Pilsen area their home.