| SUBSTATE SITE | |||||
| CEDAR RAPIDS, KENNEDY | CEDAR RAPIDS, KENNEDY | 16 | DAVENPORT, WEST | 2 | (5 inn) |
| DOWLING CATHOLIC, WDM | DOWLING CATHOLIC, WDM | 5 | VALLEY, WDM | 4 | |
| DUBUQUE, HEMPSTEAD | DUBUQUE, HEMPSTEAD | 6 | BETTENDORF | 0 | |
| INDIANOLA | INDIANOLA | 8 | URBANDALE | 7 | |
| IOWA CITY, WEST | IOWA CITY, WEST | 6 | XAVIER, CEDAR RAPIDS | 4 | |
| MASON CITY | MASON CITY | 3 | CEDAR RAPIDS, JEFFERSON | 2 | |
| SIOUX CITY, NORTH | SIOUX CITY, NORTH | 5 | FORT DODGE | 1 | |
| SOUTHEAST POLK | ANKENY | 7 | DES MOINES, EAST | 2 |