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 2019-2020
| NAME | PARISH |
| Matt Henning, President | Our Lady of Victory |
| Dan Timmons, Vice-President | Representative at Large |
| Joe Creen | Representative at Large |
| Josie Collins | St. Alphonsus |
| Carol Foster | St. Anthony |
| Angelica Kent | St. Mary |
| John Leinhart | Our Lady of Lourdes |
| Chad Manternach | St. Paul the Apostle |
| Kathy Mercer | St. John Vianney |
| Paul Roe | Holy Family |
| Mary Thompson | Sacred Heart |
| Rev. Paul Appel | St. Alphonsus & Holy Family |
| Rev. James Vrba | St. John Vianney |
| Rev. Anthony Herold | St. Paul the Apostle |