The following is a list of schools operated by the Roman Catholic Archdiocese of Chicago, which covers Cook and Lake counties, followed by a list of former high schools closed after 1959 and former K-8 schools closed after 1983.
In 1985 Joseph Bernardin, then the head of the archdiocese, stated that as costs increased to operate Catholic schools, it was likely merging or closure would result. In 1990 Bernardin stated that 18 schools were to close that year. He suggested that some parishes may change from having their own schools to having joint schools with other parishes, or regional schools. Ultimately 25 schools closed in 1990. In 1994 an additional 24 were shuttered. From 1990 to 2004, the number of Catholic schools shuttered exceeded 100.
Wikipedia https://en.wikipedia.org/wiki/Saint_Gilbert_School
Address 203 E Belvidere Rd, Grayslake 60030, United States
Coordinates 42°20'14.079" N -88°2'27.285" E