| SUBSTATE SITE | |||||
| BELMOND-KLEMME | ST. EDMOND, FORT DODGE | 4 | LAKE MILLS | 3 | |
| CLARINDA | INTERSTATE 35, TRURO | 11 | CLARINDA | 1 | (6 inn) |
| KUEMPER CATHOLIC, CARROLL | KUEMPER CATHOLIC, CARROLL | 6 | LAWTON-BRONSON | 5 | |
| MARSHALLTOWN | PCM, MONROE | 8 | NORTH POLK, ALLEMAN | 1 | |
| SHELDON | CHEROKEE, WASHINGTON | 10 | SHELDON | 0 | |
| SOLON | SOLON | 15 | CASCADE, WESTERN DUBUQUE | 8 | |
| WAVERLY-SHELL ROCK | COLUMBUS CATHOLIC, WATERLOO | 6 | SOUTH WINNESHIEK, CALMAR | 3 | |
| WILLIAMSBURG | DAVIS COUNTY, BLOOMFIELD | 10 | WILTON | 2 |