| SUBSTATE SITE | |||||
| ANKENY | VALLEY, WDM | 10 | ANKENY | 1 | |
| CEDAR RAPIDS, KENNEDY | IOWA CITY, WEST | 5 | CEDAR RAPIDS, KENNEDY | 3 | (8 inn) |
| DAVENPORT, WEST | NORTH SCOTT, ELDRIDGE | 5 | DAVENPORT, WEST | 0 | |
| DUBUQUE, HEMPSTEAD | XAVIER, CEDAR RAPIDS | 3 | DUBUQUE, HEMPSTEAD | 2 | |
| JOHNSTON | JOHNSTON | 3 | URBANDALE | 1 | |
| OTTUMWA | OTTUMWA | 3 | INDIANOLA | 1 | |
| WATERLOO, WEST | MARSHALLTOWN | 6 | WATERLOO, WEST | 5 | (8 inn) |
| WESTWOOD, SLOAN | SIOUX CITY, WEST | PPD | COUNCIL BLUFFS, ABE LINCOLN | PPD | PPD to 7 p.m. on July 21 |