Assumption High School is supported by nine Catholic parishes in the Quad City area and is governed by a school board of fourteen members. Though personal contact information for board members is not public, the Board President disseminates any communications to the board as received. The email address to send any such communications is BoardofDirectors@assumptionhigh.org.
Board Members 2020-2021
| NAME | PARISH |
| Dan Timmons, President | Representative at Large |
| Chad Manternach, Vice-President | St. Paul the Apostle |
| Pat Archer | Our Lady of Victory |
| Joe Creen | Representative at Large |
| Carol Foster | St. Anthony |
| Angelica Kent | St. Alphonsus |
| John Leinhart | Our Lady of Lourdes |
| Kathy Mercer | St. John Vianney |
| Paul Roe | Holy Family |
| Mary Thompson | Sacred Heart |
| Rev. Bruce DeRammelaere | St. Paul the Apostle |
| Rev. Jake Greiner | Our Lady of Victory |
| Rev. Rudy Juarez | St. Anthony |