Below are the results from the contested Republican races in the Iowa Primary held on Tuesday, June 7, 2016.
(i) = incumbent
U.S. Senate
- Chuck Grassley (i)
Iowa 1st Congressional District
- Rod Blum (i)
Iowa 2nd Congressional District
- Christopher Peters
Iowa 3rd Congressional District
- David Young (i) – 85% (17,852)
- Joe Granadette – 15% (3,134)
Iowa 4th Congressional District
- Steve King (i) – 65% (28,858)
- Rick Bertrand – 35% (15,714)
Iowa Senate Races:
Senate District 2
- Randy Feenstra (i)
Senate District 4
- Dennis Guth (i)
Senate District 6
- Mark Segebart (i)
Senate District 8
- Dan Dawson – 58% (950)
- Al Ringgenberg – 36% (582)
- Mark Hansen – 6% (105)
Senate District 10
- Jake Chapman (i)
Senate District 12
- Mark Costello (i)
Senate District 14
- Amy Sinclair (i)
Senate District 20
- Brad Zaun (i)
Senate District 22
- Charles Schneider (i)
Senate District 24
- Jerry Behn (i)
Senate District 26
- Waylon Brown
Senate District 28
- Michael Breitbach (i)
Senate District 30
- Bonnie Sadler
Senate District 32
- Craig Johnson
Senate District 34
- Rene Gadelha
Senate District 36
- Jeff Edler
Senate District 38
- Tim Kapucian (i)
Senate District 40
- Ken Rozenboom (i)
Senate District 42
- Danny Graber – 63% (829)
- Ralph Holmstrom – 37%
Senate District 44
- Thomas Greene
Senate District 46
- Mark Lofgren
Senate District 48
- Dan Zumbach (i)
Senate District 50
- John Hulsizer
Iowa House Races:
House District 1
- John Wills (i)
House District 2
- Megan Jones (i)
House District 3
- Dan Huseman (i)
House District 4
- Skyler Wheeler – 45% (2,111)
- Ken Van Otterloo – 30% (1,415)
- Jeffrey VanDerWerff – 26% (1,215)
House District 5
- Chuck Holz (i)
House District 6
- Jim Carlin – 52% (1,151)
- Jacob Bossman – 48% (1,061)
House District 7
- Tedd Gassmann (i)
House District 8
- Terry Baxter (i)
House District 9
- Gary Waechter
House District 10
- Mike Sexton (i)
House District 11
- Gary Worthan (i)
House District 12
- Brian Best (i)
House District 13
- Shaun Broyhill
House District 14
- Robert Henderson
House District 15
- Bill Riley
House District 16
- Mary Ann Hanusa (i)
House District 17
- Matt Windschitl (i)
House District 18
- Steven Holt (i)
House District 19
- Ralph Watts (i)
House District 20
- Clel Baudler (i)
House District 21
- Tom Moore (i)
House District 22
- Greg Forristall (i) – 80% (962)
- Bryan Holder – 20% (237)
House District 23
- David Sieck (i)
House District 24
- Cecil Dolecheck (i)
House District 25
- Stan Gustafson (i) – 67% (849)
- Tim Mohns – 33% (414)
House District 26
- Rebel Snodgrass
House District 27
- Joel Fry (i)
House District 28
- Greg Heartsill (i)
House District 29
- Patrick Payton
House District 30
- Zach Nunn (i)
House District 31
- Matt Christofferson
House District 36
- Scott Miller – 53% (222)
- Derek Tidball – 47% (198)
House District 37
- John Landon (i)
House District 38
- Kevin Koester (i) 87% (425)
- Brett Nelson – 13% (72)
House District 39
- Jake Highfill (i) – 58% (576)
- Christian DenOuden – 42% (409)
House District 40
- Scott Reed – 75% (313)
- Eric South – 25% (103)
House District 42
- Peter Cownie (i)
House District 43
- Chris Hagenow (i)
House District 44
- Rob Taylor (i)
House District 45
- Sondra Childs-Smith
House District 47
- Chip Baltimore (i)
House District 48
- Rob Bacon (i)
House District 49
- Dave Dayoe (i)
House District 50
- Pat Grassley (i)
House District 51
- Jane Bloomingdale
House District 52
- Stacie Stokes
House District 53
- Barbara Hovland
House District 54
- Linda Upmeyer (i)
House District 55
- Michael Bergan – 60% (713)
- Alex Popenhangen – 40% (471)
House District 56
- Kristi Hager – 71% (1,223)
- Lowell Engle – 29% (497)
House District 57
- Shannon Lundgren
House District 58
- Andy McKean – 63% (674)
- Allen Ernst – 27% (291)
- Joshua Sundstrom – 10% (110)
House District 59
- Drew Speer
House District 60
- Walt Rogers (i)
House District 63
- Sandy Salmon (i)
House District 65
- Harry Foster
House District 67
- Ashley Hinson
House District 68
- Ken Rizer (i)
House District 70
- Steven Van Fleet
House District 72
- Dean Fisher (i)
House District 73
- Bobby Kaufmann (i)
House District 75
- Dawn Pettengill (i)
House District 76
- Dave Maxwell (i)
House District 77
- Royce Phillips – 72% (198)
- Paula Dreeszen – 28% (76)
House District 78
- Jared Klein (i) – 67% (1,939)
- Marcus Fedler – 33% (955)
House District 79
- Guy Vander Linden (i)
House District 80
- Larry Sheets (i)
House District 84
- David Heaton (i)
House District 88
- Tom Sands (i)
House District 91
- Gary Carlson (i)
House District 92
- Ross Paustian (i)
House District 93
- Kurt Whalen
House District 94
- Gary Mohr
House District 95
- Louis Zumbach
House District 96
- Lee Hein (i)
House District 97
- Norlin Mommsen
House District 98
- Jeannine Eldrenkamp