Mundelein is a village in Lake County, Illinois, United States and a northern suburb of Chicago.

Mundelein was first settled by European settlers in 1835, and was incorporated in 1909 after a spur line connected the village to the Chicago North Shore and Milwaukee Railroad.

The University of Saint Mary of the Lake opened in 1921, and in June 1926 the village hosted the closing events of the 28th International Eucharistic Congress, bringing hundreds of thousands of people to the town.

Peter Shaddle was the first European settler in 1835, and built a log cabin which is now owned by University of Saint Mary of the Lake.

He migrated from New York in 1847 and was a civic and spiritual leader in the community through his participation in the Methodist Episcopal Church and for his service in township offices.

[5] Sheldon's business failed, with the Electronic Encyclopedia of Chicago suggesting that the failure was a result of World War I.

[4] Sheldon later sold his estate, which was purchased by the Archbishop of Chicago George Mundelein to open University of Saint Mary of the Lake in 1921.

[9] The closing events for the 28th International Eucharistic Congress were held in the University of Saint Mary of the Lake on June 24, 1926.

Approximately half a million people came to the campus, including 10,000 nuns, 8,000 priests, 390 bishops, 64 archbishops, and 12 cardinals.

[10] A temporary terminal was built to accommodate the events at the current site of Carmel High School, which existed until the Great Depression.

[9] 18,000 cars went through Mundelein on that day, and thousands of National Guard troops were sent to control traffic after the event.

The first flood occurred on September 27, 1936, after 1.33 inches of rain fell onto the village, damaging businesses.

The second occurred in June 1937, flooding the village's main road and causing further damage to adjacent neighborhoods and businesses.

The village saw economic and industrial growth during the 1990s, gaining over 10,000 residents between the 1980 and 1990 United States census.

[14] Mundelein greatly expanded in size in 2022 with the annexation of over 700 acres of land owned by the Wirtz family; the owners of the Chicago Blackhawks.

[17] Mundelein borders Hawthorn Woods and Vernon Hills to the south and east, and is primarily located within the Indian Creek watershed in Lake County.

[22] Mundelein's population is 31,560, making it the fourth largest village in Lake County, according to the 2020 United States census.

The fire truck was officially turned over to the village at a ceremony held at the St. Mary of the Lake Seminary on July 17, 1925.

The organization won three awards in October 2021 from the Illinois Association of Park Districts, two of which were from business partnerships.

Plans were made in 2015 to relocate the memorial to Kracklauer Park in the south of the town but were abandoned after public backlash.

[40] The old site, which was previously used as a barbershop, was sold to Mundelein Elementary School District 75 where it has been used as an administration building.

[3] The building, which was described as "Tudor-style"[43] and "Alpine-style", was also previously used as a fire station, municipal jail, and a community center.

The property was sold to a cattle breeder in 1940 and was partially used as the site for the construction of Mundelein High School.

[54]For the history see Arthur Zilversmit, Changing schools: Progressive education theory and practice, 1930-1960 (University of Chicago Press, 1993).

[59] Hawthorn Community Consolidated School District 73 primarily serves the nearby village of Vernon Hills.

The seminary closed in 1866 due to financial problems, and the building was destroyed in 1871 in the Great Chicago Fire.

[52] The village namesake, George Mundelein, is buried in the Chapel of the Immaculate Conception on campus.

The Roman Catholic Archdiocese of Chicago announced the closure of the school in January 2014, which by then only enrolled approximately 80 students.

The tracks that the North Central Service ran on were bought out by CN in 2001 after the railway acquired Wisconsin Central Ltd.[5] Pace provides bus services on Route 574 connecting Mundelein to Grayslake, Vernon Hills, and other destinations.

[75] Mundelein is also provided news coverage by Daily Herald, based in Arlington Heights, Illinois,[76] and FOX 32 Chicago.