The Pocket Athletic Conference (PAC) is a high school athletic conference in Southwestern Indiana with its headquarters at Forest Park. Most of the conference's 13 members are mainly Class 2A and 3A public high schools currently located in Daviess, Dubois, Gibson, Perry, Pike, Posey, Spencer, and Warrick counties. Only one, Tecumseh, is a 1A and as such operates its football program independently of the PAC and remains independent in the sport, playing schools much closer to its size than its much larger borderline 3A or 3A and 4A fellow members.
The Mid-Eastern Conference is an IHSAA-sanctioned conference in East Central Indiana. The conference formed in 1963 as schools from Delaware, Henry, and Randolph counties banded together with impending consolidations making their conference situations unstable. The conference has never been stable for long, varying between six and eight members between 1963 and 1977, and having as many as ten members since. While schools from Hancock, Madison and Wayne counties have participated, the conference has generally stayed within its original footprint. The league once again grew to ten members as Eastern Hancock and Shenandoah joined.
The Midwest Athletic Conference is a high school athletic conference in northwestern Indiana, which has existed in two different incarnations, with a third planned to form in 2018. The original conference began in 1932, consisting of schools that were larger than most of their counterparts in their local county leagues. The schools were based in Benton, Fountain, Jasper, Newton, Tippecanoe, Warren, and White counties. The forming of the Kankakee Valley Conference the next year caused a slight fluctiation over the next couple of years, as schools realigned themselves within the two leagues, with some schools claiming dual membership. The league folded in 1947, as size disparities and willingness to sponsor some sports led to schools going their separate ways.
The Hoosier Crossroads Conference is a member conference of the Indiana High School Athletic Association. Teams first competed in the conference in the 2000-2001 school year. The HCC contains eight high schools in the Indianapolis Metropolitan Area. There are two schools in Hendricks County, one in Boone County, four in Hamilton County, and one in Marion County.
The Duneland Athletic Conference (DAC) is a high school athletic conference in Indiana serving eight members of the Indiana High School Athletic Association. Member schools are located in the counties of Lake, LaPorte, and Porter along Indiana's Lake Michigan shore. Each school is classified based on enrollment as 6A or 5A for football and 4A for basketball, the classes for the largest schools in Indiana. The Duneland Conference is also known for its gymnastics programs which have won a combined total of 35 state championship and state runner-up titles.
The Ohio River Valley Conference is an Indiana High School Athletic Association-sanctioned conference located in Jefferson, Ohio, Ripley, and Switzerland counties. Formed in 1952, the conference has been fairly stable throughout its history, as five of the current seven members are original members.
The Allen County Athletic Conference (ACAC) is a seven-member Indiana High School Athletic Association (IHSAA) conference. While all of its charter schools are and were located in Allen County, it also has member schools from Adams, Jay, and Wells counties. The ACAC, along with the Porter County Conference, are the only two county conferences left in existence.
The Greater South Shore Conference is an eight-member Indiana High School Athletic Association athletic conference spanning Lake and Porter counties in Northwest Indiana. Two other members, Boone Grove and South Central, participate only in football, otherwise participating in the Porter County Conference.
The Mid-Hoosier Conference is a seven-member IHSAA-sanctioned athletic association located within Bartholomew, Decatur, Johnson, and Shelby Counties in Central Indiana.
A ten-member IHSAA-Sanctioned Athletic Conference within the South Central Indiana counties of Clark, Harrison, Jackson, Scott, and Washington.
The North Central Conference is an IHSAA-sanctioned athletic conference consisting of ten large high schools in Cass, Delaware, Grant, Howard, Madison, Marion, Tippecanoe, and Wayne Counties across Central and North Central Indiana. Most of these schools are in 35,000+ population towns like Anderson, Marion, Kokomo, Lafayette, Muncie, and Richmond. Several of the nation's largest gymnasiums belong to members of this conference.
An eight-member IHSAA-Sanctioned Athletic Conference within the Northeastern Indiana counties of Adams, Allen, DeKalb, Huntington, Noble, Wells, and Whitley. The conference was started in 1989 as the Northeast Hoosier Conference when six schools from the Northeastern Indiana Athletic Conference joined with two schools from the Allen County Athletic Conference. When the smaller six schools decided to pull out of the conference in 2015, the conference essentially ceased to exist, forcing the much larger Carroll and Homestead into joining the Summit Athletic Conference. The remaining schools, while settling on the current league name, added Huntington North of the North Central Conference and Leo of the Allen County Athletic Conference, who are more similar in size to the rest of the schools. While the six NEHC schools technically dropped out, they never actually left the league, having succeeded in forcing out the two large Fort Wayne schools, ended up staying in the league. This is not an unheard of tactic, as most notably Ohio's Chagrin Valley Conference pulled virtually the same move around the same time.
An eight-member IHSAA-sanctioned athletic located within Clay, Daviess, Greene and Sullivan Counties in Southwest and West Central Indiana. North Central (Farmersburg) joined in 2010 with the folding of the Tri-River Conference. Prior to that time, Clay City, Linton Stockton, Shakamak, and Union (Dugger) also participated in the Tri-River Conference concurrently while playing in the SWIAC. The conference was originally formed in 1939, but information on early membership between then and 1958 is incomplete.
The White River Conference was an IHSAA-sanctioned conference located within rural areas of East Central Indiana, that existed twice, once from 1954 to 1977, and from 1989 to 2010. The first version of the conference was founded as a home for high schools in Madison County who weren't in the Central Indiana Athletic Conference. The conference would expand quickly from six to nine schools, as two new high schools in Anderson and Middletown, a school in Henry County, were added within two years. Membership was generally not stable until 1969, as Madison Heights left, Highland was forced out and eventually added back into the conference, St. Mary's closed, member schools consolidated, and schools from neighboring Delaware and Hancock counties were added. Eventually, large disparities in enrollment causing the conference to disband, as city and consolidated schools outgrew their rural counterparts.. Schools would move into the Big Blue River Conference, Classic Athletic Conference, and Mid-Eastern Conference.
The Pioneer Conference was formed in 2009. It is made up of ten small private, military, laboratory, and/or charter schools from Delaware, Hamilton, Johnson, Madison, Marion, and Wayne counties. All schools are Class 1A IHSAA members.
Muncie Central High School (MCHS) in Muncie, Indiana is a public high school. As of the 2013–14 school year, it had 913 students. Opened in 1868, the school is today part of the Muncie Community Schools Corp.
The Big Blue River Conference was an IHSAA-mandated conference featuring schools from North Central and East Central Indiana. It operated from the 1968–69 school year until 1988–89. Five of the original seven schools came from the East Central Conference, four directly, while Tri was formed from the consolidation of ECC member Spiceland. Morton Memorial, the last remaining ECC member in 1969, would join the conference that year, along with Hamilton Southeastern. The nine school format did not last long, as Morton Memorial left after one season, and Hamilton Southeastern had outgrown the conference and left by 1972. The conference briefly returned to nine schools in 1977, as Lapel and Shenandoah joined from the folding White River Conference. However, North Decatur left three years later, as the new expansion left them geographically isolated. Morristown would follow suit in 1985, as the school dropped football. The conference would split in 1989, as Lapel and Shenandoah would help reform the WRC, New Palestine and Triton Central would move to the Rangeline Conference, and Tri was accepted into the Tri-Eastern Conference. Knightstown and Eastern Hancock were left as independents, though both would join the WRC six and eight years later, respectively.
The Classic Athletic Conference was a short-lived IHSAA-sanctioned conference based in northern East Central Indiana. Formed by the largest schools in their predecessor conferences, the conference only lasted nine years before disbanding
There were numerous conferences within the IHSAA that were made up of schools based entirely in one county. Many of these "County Conferences" also contained schools from neighboring counties that were either geographically closer or smaller than the other schools in their home county. These conferences would fold when schools would consolidate and seek out other, more expansive conferences that included similar-sized schools. The starting date of many of these conferences is hard to confirm, so the listing for many of these leagues uses the earliest date that can be confirmed.
