| SUBSTATE SITE | |||||
| BISHOP HEELAN CATHOLIC, SC | BISHOP HEELAN CATHOLIC, SC | 44 | ADM, ADEL | 6 | |
| BOONE | CHARLES CITY | 31 | BOONE | 0 | |
| CARROLL | CARROLL | 35 | ALGONA | 0 | |
| CENTERVILLE | CENTERVILLE | 30 | CLEAR CREEK-AMANA | 16 | |
| CENTRAL CLINTON, DEWITT | NEW HAMPTON | 15 | CENTRAL CLINTON, DEWITT | 6 | |
| CLEAR LAKE | CLEAR LAKE | 42 | BALLARD, HUXLEY | 0 | |
| CRESTWOOD, CRESCO | CRESTWOOD, CRESCO | 46 | UNION, LAPORTE CITY | 23 | |
| DECORAH | DECORAH | 21 | BENTON, VAN HORNE | 19 | |
| HARLAN | HARLAN | 58 | MOC-FLOYD VALLEY | 14 | |
| LEWIS CENTRAL | SERGEANT BLUFF-LUTON | 35 | LEWIS CENTRAL | 14 | |
| MARION | WEST DELAWARE, MANCHESTER | 35 | MARION | 2 | |
| MOUNT PLEASANT | MOUNT PLEASANT | 31 | NORWALK | 14 | |
| PELLA | PELLA | 61 | OSKALOOSA | 14 | |
| SPENCER | SPENCER | 42 | ATLANTIC | 7 | |
| WEBSTER CITY | WEBSTER CITY | 20 | DALLAS CENTER-GRIMES | 14 | |
| WILLIAMSBURG | WILLIAMSBURG | 31 | GRINNELL | 28 | 2OT |