| 1978 | ||
|---|---|---|
| SECTIONALS | ||
| SITE | WINNER | CLASS |
| Barr-Reeve | Barr-Reeve | |
| Batesville | Jac-Cen-Del | |
| Beech Grove | Beech Grove | |
| Bellmont | Bellmont | |
| Bloomington North | Bloomington South | |
| Blue River | New Castle | |
| Boonville | Castle | |
| Brownstown | Bedford North Lawrence | |
| Carmel | Carmel | |
| Churubusco | Homestead | |
| Clay City | North Central (Farmersburg) | |
| Connersville | Richmond | |
| Crawford County | Corydon Central | |
| Decatur Central | Southport | |
| DeKalb | Eastside | |
| East Central | East Central | |
| East Gary | Merrillville | |
| Elkhart Central | Goshen | |
| Eminence | Mooresville | |
| Evansville Bosse | Evansville North | |
| Floyd Central | Floyd Central | |
| Fort Wayne Snider | Fort Wayne North | |
| Frankfort | Tipton | |
| Gary Wallace | Gary Roosevelt | |
| Gibson Southern | Gibson Southern | |
| Greenfield | Mount Vernon (Fortville) | |
| Greenwood | Center Grove | |
| Hammond | Hammond Morton | |
| Hanover Central | Lake Central | |
| Harding | Heritage | |
| Hauser | Columbus North | |
| Indiana Deaf | North Central (Indianapolis) | |
| Indianapolis Attucks | Indianapolis Tech | |
| Jasper | Jasper | |
| Knox | North Judson | |
| Lapel | Anderson | |
| LaVille | John Glenn | |
| Lewis Cass | Lewis Cass | |
| Michigan City Rogers | Michigan City Rogers | |
| Mishawaka | South Bend Riley | |
| Mississinewa | Marion | |
| Munster | East Chicago Roosevelt | |
| Northfield | Northfield | |
| Northwestern | Kokomo Haworth | |
| NorthWood | NorthWood | |
| Plainfield | Brownsburg | |
| Portage | Valparaiso | |
| Randolph Southern | Winchester | |
| Scottsburg | Madison | |
| Seeger | Benton Central | |
| Silver Creek | Borden | |
| South Knox | Vincennes Lincoln | |
| South Newton | South Newton | |
| South Vermillion | Rockville | |
| Switz City | Bloomfield | |
| Terre Haute North | Van Buren | |
| Tippecanoe Valley | Warsaw | |
| Triton Central | Triton Central | |
| Twin Lakes | Twin Lakes | |
| Warren Central | Warren Central | |
| West Lafayette | Lafayette Jeff | |
| West Noble | Westview | |
| Western Boone | Western Boone | |
| Yorktown | Wes-Del | |
| REGIONALS | ||
| SITE | WINNER | CLASS |
| Anderson | Anderson | |
| Center Grove | Southport | |
| East Chicago Washington | East Chicago Roosevelt | |
| Elkhart Central | South Bend Riley | |
| Fort Wayne Northrop | Heritage | |
| Greencastle | Mooresville | |
| Huntington North | Northfield | |
| Jasper | Jasper | |
| Michigan City Rogers | Michigan City Rogers | |
| Milan | Jac-Cen-Del | |
| Mount Vernon (Fortville) | Mount Vernon (Fortville) | |
| North Montgomery | Benton Central | |
| Rochester | Warsaw | |
| Scottsburg | Madison | |
| Warren Central | Indianapolis Tech | |
| Washington | Vincennes Lincoln | |
| SEMISTATES | ||
| SITE | WINNER | CLASS |
| Ben Davis | Mooresville | |
| Benton Central | Warsaw | |
| Fort Wayne Northrop | Heritage | |
| Seymour | Jac-Cen-Del | |
| STATE | ||
| SITE | WINNER | CLASS |
| Hinkle Fieldhouse | Warsaw | |