For the 2018 fall trap league, 19 high school teams are assigned to 4 conferences based on a similar number of team members.
(#) = Number of athlete’s scores used for each team to determine True Team™ scoring points earned.
| Conference 1 (6) |
| Berthold-North Shore-Plaza High School |
| Garrison High School |
| Oakes High School |
| South Prairie High School |
| West Fargo High School |
| Conference 2 (11) |
| Barnes County North High School |
| Bismarck High School |
| Enderlin High School |
| Grafton High School |
| Valley City High School |
| Conference 3 (15) |
| Century High School |
| Davies High School |
| Devils Lake High School |
| Shanley High School |
| Conference 4 (23) |
| Legacy High School |
| Mandan High School |
| Oak Grove Lutheran High School |
| Sheyenne High School |
| Williston High School |