| SUBSTATE SITE | |||||
| DALLAS CENTER-GRIMES | DALLAS CENTER-GRIMES | 5 | WINTERSET | 0 | |
| DALLAS CENTER-GRIMES | WEBSTER CITY | 4 | CARLISLE | 0 | |
| DENISON-SCHLESWIG | DENISON-SCHLESWIG | 6 | PERRY | 1 | |
| DENVER | DENVER | 4 | IOWA FALLS-ALDEN | 0 | |
| FAIRFIELD | FAIRFIELD | 4 | WASHINGTON | 1 | |
| GLENWOOD | GLENWOOD | 12 | ATLANTIC | 1 | |
| GRINNELL | GRINNELL | 9 | PCM, MONROE | 1 | |
| MARION | CLEAR CREEK-AMANA | 1 | MARION | 0 | |
| MOUNT PLEASANT | MOUNT PLEASANT | 1 | CENTERVILLE | 0 | 2OT/PK |
| PELLA | PELLA | 6 | CHARITON | 0 | |
| SOUTH TAMA COUNTY, TAMA | SOUTH TAMA COUNTY, TAMA | 2 | BENTON, VAN HORNE | 1 | |
| SPIRIT LAKE | SPIRIT LAKE | 3 | CARROLL | 2 | |
| STORM LAKE | STORM LAKE | 6 | HUMBOLDT | 2 | |
| WAVERLY-SHELL ROCK | WAVERLY-SHELL ROCK | 2 | INDEPENDENCE | 1 | |
| WEST DELAWARE, MANCHESTER | EPWORTH, WESTERN DUBUQUE | 2 | WEST DELAWARE, MANCHESTER | 1 | |
| WEST DELAWARE, MANCHESTER | ANAMOSA | 3 | MAQUOKETA | 1 |