United States Senate – GOP Gain
Joni Ernst (R) – 588,575 – 52.10%
Bruce Braley (D) – 494,370 – 43.76%
Rick Stewart (I) – 26,815 – 2.37%
Doug Butzier (L) – 8,232 – 0.73%
Bob Quast (Bob Quast for Term Limits) – 5,873 – 0.52%
Ruth Smith (Nominated by Petition) – 4,724 – 0.42%
Write-Ins – 1,111 – 0.10%
Total Votes – 1,129,700 – 100.00%
United States House of Representatives – District 1 – GOP Gain
Rod Blum (R) – 147,762 – 51.07%
Pat Murphy (D) – 141,145 – 48.79%
Write-Ins – 399 – 0.14%
Total Votes – 289,306 – 100.00%
United States House of Representatives – District 2 – DEM Hold
Dave Loebsack (D-inc) – 143,431 – 52.48%
Mariannette Miller-Meeks (R) – 129,455 – 47.36%
Write-Ins – 443 – 0.16%
Total Votes – 273,329 – 100.00%
United States House of Representatives – District 3 – GOP Hold
David Young (R) – 148,814 – 52.76%
Staci Appel (D) – 119,109 – 42.23%
Edward B. Wright (L) – 9,054 – 3.21%
Bryan Jack Holder (I) – 4,360 – 1.55%
Write-Ins – 729 – 0.26%
Total Votes – 282,066 – 100.00%
United States House of Representatives – District 4 – GOP Hold
Steve King (R-inc) – 169,834 – 61.62%
Jim Mowrer (D) – 105,504 – 38.28%
Write-Ins – 295 – 0.11%
Total Votes – 275,633 – 100.00%