Here is a list of groups. Underwood's comp is both a show choir and a jazz choir festival, so I'm not sure which are jazz (but I'm guessing Griswold and Treynor). Haven't seen a schedule yet, but if someone has it please post.
Missouri Valley Middle School
Kirn Middle School
Lewis Central Middle School
Griswold HS
Treynor HS
Thomas Jefferson HS
Skutt Catholic HS
Audubon HS
Woodbine HS
Logan Magnolia HS
Missouri Valley HS
AHSTW HS
Boyden-Hull HS
Tri-Center HS
1A
3 - Audubon HS "Odyssey"
2 - Logan-Magnolia HS "Off Center Stage"
1 - Woodbine HS "Visual Harmonics
2A
4 - AHSTW "Viking Voices"
3 - Missouri Valley "Mo Show"
2 - Boyden Hull "Show Choir"
1 - Tri-Center "TC Sensations"
3A
1 - Skutt Catholic "Vivace"
Prep
Skutt Catholic "Allegro"