| SUBSTATE SITE | |||||
| AMES | AMES | 81 | DES MOINES, NORTH | 56 | |
| BETTENDORF | BETTENDORF | 52 | PLEASANT VALLEY | 33 | |
| CEDAR RAPIDS, KENNEDY | CEDAR RAPIDS, KENNEDY | 89 | DUBUQUE, HEMPSTEAD | 37 | |
| DAVENPORT, CENTRAL | DAVENPORT, CENTRAL | 57 | NORTH SCOTT, ELDRIDGE | 40 | |
| DES MOINES, HOOVER | DES MOINES, HOOVER | 67 | ANKENY | 63 | |
| DES MOINES, LINCOLN | DES MOINES, LINCOLN | 57 | DES MOINES, ROOSEVELT | 36 | |
| DUBUQUE, SENIOR | DUBUQUE, SENIOR | 60 | CLINTON | 57 | |
| IOWA CITY, CITY | IOWA CITY, CITY | 62 | OTTUMWA | 52 | |
| IOWA CITY, WEST | IOWA CITY, WEST | 72 | OSKALOOSA | 54 | |
| LINN-MAR, MARION | LINN-MAR, MARION | 65 | CEDAR FALLS | 52 | |
| MARSHALLTOWN | MARSHALLTOWN | 59 | URBANDALE | 57 | |
| SIOUX CITY, EAST | SIOUX CITY, EAST | 83 | LEWIS CENTRAL | 73 | |
| SIOUX CITY, NORTH | SIOUX CITY, NORTH | 60 | COUNCIL BLUFFS, ABE LINCOLN | 57 | |
| SOUTHEAST POLK | SOUTHEAST POLK | 48 | JOHNSTON | 38 | |
| WATERLOO, EAST | CEDAR RAPIDS, JEFFERSON | 67 | WATERLOO, EAST | 50 | |
| WAUKEE | WAUKEE | 71 | DOWLING CATH., WEST DM | 62 |