| SUBSTATE SITE | |||||
| ANKENY | DES MOINES, LINCOLN | 1 | ANKENY | 0 | |
| CEDAR RAPIDS, KENNEDY | CEDAR RAPIDS, KENNEDY | 6 | WATERLOO, EAST | 0 | |
| DUBUQUE, HEMPSTEAD | DUBUQUE, HEMPSTEAD | 9 | CEDAR RAPIDS, JEFFERSON | 3 | |
| FORT DODGE | SIOUX CITY, NORTH | 15 | FORT DODGE | 10 | |
| JOHNSTON | DES MOINES, EAST | 11 | JOHNSTON | 1 | (6) |
| VALLEY, WEST DES MOINES | VALLEY, WEST DES MOINES | 13 | LEWIS CENTRAL | 10 |