2018Final results
2018 election for Iowa's 4th District
U.S. House · Iowa
Steve King (R) won with 50.3% of the vote, defeating J.D. Scholten (D) by 3.3 points.
Steve KingRepublican · winner
50.3%157,676
J.D. ScholtenDemocrat
47.0%147,246
Charles AldrichLibertarian
2.0%6,161
Edward PetersonIndependent
0.6%1,962
313,251 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
The seat over time
D − R margin in this seat's races around 2018
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 6:17 AM ET
Money in this race
Each line compares the two campaigns on one scale.
J.D. ScholtenSteve King
$3.3M
Raised by the campaign
$876.2K
$3.2M
Spent by the campaign
$976.6K
$69.2K
Cash on hand
$26.2K
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018
The candidates
Steve King (R)J.D. Scholten (D)
Also on the ballot: Charles Aldrich (Libertarian), 2.0%; Edward Peterson (Independent), 0.6%