Iowa

History
Throughout the history of Iowa, only thrice has the dynasty of Ames Middle School been challenged, in 2011, 2013, and 2014. Every year that Iowa has sent a Division C team to nationals, it has been Ames High School.

Past State Champions
This is a record of the past state champions and runners up, and their respective places at the national competition, if applicable. Scores at the state competition may be shown in parentheses.

{| class="wikitable" ! Year !! Division B Champion !! B Champ Nats Place !! Division B Runner-up !! Division C Champion !! C Champ Nats Place !! Division C Runner-up
 * 1993 || Ames Middle School || 43 || ||  ||  ||
 * 1994 || Ames Middle School || 34 || || Ames High School || 43 ||
 * 1995 || Ames Middle School || 28 || || Ames High School || 41 ||
 * 1996 || Ames Middle School || 28 ||  || Ames High School || 43 ||
 * 1997 || Ames Middle School || 18 || || Ames High School || 40 ||
 * 1998 || Ames Middle School || 25 || || Ames High School || 42 ||
 * 1999 || Ames Middle School || 27 || || Ames High School || 38 ||
 * 2000 || Ames Middle School || 34 || || Ames High School || 40 ||
 * 2001 || Ames Middle School || 40 || || Ames High School || 36 ||
 * 2002 || Ames Middle School || 30 || || Ames High School || 28 ||
 * 2003 || Ames Middle School || 18 || || Ames High School || 23 ||
 * 2004 || Ames Middle School || 21 || || Ames High School || 20 ||
 * 2005 || Ames Middle School || 33 || || Ames High School || 28 ||
 * 2006 || Ames Middle School || 34 || || Ames High School || 17 ||
 * 2007 || Ames Middle School || 43 || || Ames High School || 16 ||
 * 2008 || Ames Middle School || 32 || || Ames High School || 30 ||
 * 2009 || Ames Middle School || 29 || || Ames High School || 32 ||
 * 2010 || Ames Middle School || 40 || || Ames High School || 36 ||
 * 2011 || Mount Vernon Middle School || 53 || || Ames High School || 40 ||
 * 2012 || Ames Middle School || 37 || || Ames High School || 50 ||
 * 2013 || Mount Vernon Middle School || 45 || Ames Middle School ||Ames High School || 42 ||
 * 2014 || Mount Vernon Middle School || 53 || Ames Middle School || Ames High School || 44 || Burlington High School
 * 2015 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School
 * 2016 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School}
 * 2005 || Ames Middle School || 33 || || Ames High School || 28 ||
 * 2006 || Ames Middle School || 34 || || Ames High School || 17 ||
 * 2007 || Ames Middle School || 43 || || Ames High School || 16 ||
 * 2008 || Ames Middle School || 32 || || Ames High School || 30 ||
 * 2009 || Ames Middle School || 29 || || Ames High School || 32 ||
 * 2010 || Ames Middle School || 40 || || Ames High School || 36 ||
 * 2011 || Mount Vernon Middle School || 53 || || Ames High School || 40 ||
 * 2012 || Ames Middle School || 37 || || Ames High School || 50 ||
 * 2013 || Mount Vernon Middle School || 45 || Ames Middle School ||Ames High School || 42 ||
 * 2014 || Mount Vernon Middle School || 53 || Ames Middle School || Ames High School || 44 || Burlington High School
 * 2015 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School
 * 2016 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School}
 * 2011 || Mount Vernon Middle School || 53 || || Ames High School || 40 ||
 * 2012 || Ames Middle School || 37 || || Ames High School || 50 ||
 * 2013 || Mount Vernon Middle School || 45 || Ames Middle School ||Ames High School || 42 ||
 * 2014 || Mount Vernon Middle School || 53 || Ames Middle School || Ames High School || 44 || Burlington High School
 * 2015 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School
 * 2016 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School}
 * 2014 || Mount Vernon Middle School || 53 || Ames Middle School || Ames High School || 44 || Burlington High School
 * 2015 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School
 * 2016 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School}
 * 2015 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School
 * 2016 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School}
 * 2016 || Ames Middle School || 41 || || Ames High School || 46 || Mount Vernon Community High School}

Competitions
Iowa does not have any regional competitions due to the number of teams in the state, only 34.

Division B

 * Ames Middle School
 * Cedar Falls Middle School
 * Durant Middle School
 * Franklin Middle School
 * Gilbert Middle School Team A and Team B
 * McKinley Middle School
 * Miller Middle School
 * Mt. Vernon Middle School Team A and Team B
 * Roosevelt Middle School

Division C

 * Ames High School
 * Burlington High School Team A and Team B
 * CR Washington High School Team A and Team B
 * Dubuque High School
 * Gilbert High School
 * Marshalltown High School
 * Mount Vernon Community High School