The Heart of Iowa Conference is a high school athletic conference in central Iowa that dates back to the 1970s. While most of the schools are 2A, the third largest class of schools in Iowa, there are a couple 1A schools and a single (Nevada) 3A school in the league.
| Institution | Location | Founded | Mascot | Colors | Affiliation | 9-12 Enrollment |
|---|---|---|---|---|---|---|
| Colfax-Mingo | Colfax | Tigerhawks | Public | |||
| Collins-Maxwell-Baxter | Maxwell | Raiders | Public | |||
| Gilbert | Gilbert | Tigers | Public | |||
| Grandview Park Baptist | Des Moines | Defenders | Private (Baptist) | |||
| Jefferson-Scranton | Jefferson | Rams | Public | |||
| Nevada | Nevada | Cubs | Public | |||
| North Polk | Alleman | Comets | Public | |||
| Prairie City-Monroe | Prairie City | Mustangs | Public | |||
| Roland-Story | Story City | Norsemen | Public | |||
| South Hamilton | Jewell | Hawks | Public |
As of 1992, the league had 9 schools in it. Throughout the 1990s, Colfax-Mingo, Pleasantville, and Woodward-Granger were added to the conference. By 1998, there were 12 schools. Pleasantville left in 2001. In 2006, Prairie City-Monroe joined the league from the South Central Conference. In 2007, Madrid left for the West Central Conference and was replaced by former Raccoon River Conference member Jefferson-Scranton. In 2008, West Marshall left for the NICL. The 2009 season saw Woodward-Granger jump to the West Central Conference and Nevada join the league from the Raccoon River Conference. In 2010 season, Colo Nesco jumped to Iowa Star Conference in every sport except soccer. Ogden left the conference in 2011 in order to join former conference foes Woodward-Granger and Madrid in the West Central Conference. Bondurant Farrar made the jump to Raccoon River Conference starting in 2011-2012 school year.