Interstate Eight Conference

The Interstate Eight Conference (Interstate 8 or I–8) is an athletic conference of Illinois high schools that are members of the Illinois High School Association (IHSA). The conference currently has 8 member schools that compete in 12 different sports (boys' basketball, girls' basketball, girls' volleyball, boys' golf, girls' golf, football, boys' soccer, girls' soccer, wrestling, baseball, softball, cross country, and track and field).

Interstate Eight Conference
Sports fielded
  • 8

The Interstate Eight began in 1979 and originally had eight schools—Coal City, Dwight, Marseilles, Plano, Reed Custer, Seneca, Wilmington, and Yorkville.Sandwich soon entered the I-8 when Marseilles dropped out.[1] In 1991, Yorkville was replaced by Lisle. In 2006 Herscher, Manteno, Peotone, and Westmont joined the conference.[1] Despite the conference growing from eight to 12 teams, the conference name remained Interstate 8. Dwight left the conference prior to the 2014–15 season while Streator joined the conference.[2][3]

Most of the member schools are in rural/smaller towns. Westmont and Lisle are suburbs of Chicago but enrollments are small in size. Westmont's population is divided between the varying schools in the area, including high schools in Darien, Woodridge, Hinsdale, Bolingbrook, Naperville, Lisle, Lombard, and Glen Ellyn. Lisle's enrollment is small, due to Lisle's relatively small size as a city, as well as being located East of Naperville, which has at least four high schools in the immediate vicinity, as well as the Glenbard schools and Wheaton-Warrenville South all being within a close proximity to the high school.

The Conference is divided into Large and Small divisions during football season and teams only play members of their division for the conference schedule. Baseball and softball are divided into North and South divisions. In all other sports, the conference is undivided.

In 2019-20, Plano and Sandwich will be adding to the Interstate 8 Conference with six former Northern Illinois Big 12 Conference, Kaneland, LaSalle-Peru, Morris, Ottawa, Rochelle, and Sycamore while Reed-Custer, Manteno, Peotone, Herscher, Wilmington, Seneca, Streator, Coal City, Westmont and Lisle left the conference. This left Plano High School as the only remaining founding member of the conference.


There are 8 members of the conference

High Schools Town Area Team Name Colors County
Kaneland High School Maple Park Northern Illinois Knights     Kane
LaSalle-Peru High School LaSalle Northern Illinois Cavaliers     LaSalle
Morris Community High School Morris Northern Illinois Redskins     Grundy
Ottawa Township High School Ottawa Northern Illinois Pirates     LaSalle
Plano High School Plano Northeast Illinois Reapers     Kendall
Rochelle Township High School Rochelle Northern Illinois Hubs     Ogle
Sandwich High School Sandwich Northeast Illinois Indians     DeKalb
Sycamore High School Sycamore Northern Illinois Spartans     DeKalb

State titlesEdit


Football is based on an 8 class system since 2001.

  • Plano (2006 3A, 2007 3A)
  • Coal City (1993 2A)
  • Seneca (1990 2A)
  • Wilmington (2014 3A)

Boys baseballEdit

  • Lisle (2013 2A)
  • Wilmington (2003, 2005)
  • Reed-Custer (1985) (2016)
  • Herscher (1999) (2015)


  • Wilmington (2007, 2008, 2009)
  • Sandwich (1991, 1997, 1999, 2001)
  • Reed-Custer (2010,2012)

Boys basketballEdit

  • Seneca (2005–06 A)

Boys golfEdit

  • Dwight (1980)

Boys soccerEdit

  • Lisle (2010 1A)

Girls soccerEdit

  • Manteno (2009 1A)
  • Manteno (2014 1A)

Competitive cheerleadingEdit

  • Dwight (2013)
  • Wilmington(2016)

Competitive Dance TeamEdit

  • Peotone (2012 1A)

Boys cross countryEdit

Cross Country is based on a 3 class system since 2007.

  • Seneca (1989 A)
  • Kaneland (2019 AA)

Girls cross countryEdit

Cross Country is based on a 3 class system since 2007.

  • Herscher (1991 A, 1992 A, 1996 A)

Girls track and fieldEdit

  • Herscher (1996)

Girls softballEdit

  • Coal City (2010)

Girls volleyballEdit

  • Lisle (1985)

Scholastic BowlEdit

Lisle (2011, 2012, 2013, 2014, 2015, 2016 wins)


  1. ^ a b Original document, "1980 Interstate Eight All Conference Softball Team", which included conference softball standings. Wilmington and Yorkville did not have softball teams in 1980.
  2. ^ "Streator gets Interstate-8 invite". Sun-Times High School Sports. 2014-08-26. Retrieved 2016-09-01.
  3. ^ 815-937-3390, Kyle Garmes "High school: Streator's arrival to Interstate Eight adds mileage". Retrieved 2016-09-01.CS1 maint: numeric names: authors list (link)

External linksEdit