Southeast Warren High School in Liberty Center, Iowa is a combination of high schools from the towns of Lacona, Liberty Center, and Milo which merged in 1959.

Southeast Warren High School Graduates: 1960, 1962-1965, 1971, 1994, 2008, 2024

The Southeast Warren Girls Basketball Team went to the 38th Annual Girls' State Basketball Championship, March 5-9, 1963, held at Veterans Auditorium, Des Moines, Iowa.