2018Final results
2018 election for Arizona's 9th District
U.S. House · Arizona
Greg Stanton (D) won with 61.0% of the vote, defeating Stephen L. Ferrara (R) by 22.1 points.
Greg StantonDemocrat · winner
61.0%159,583
Stephen L. FerraraRepublican
38.9%101,662
261,559 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.
Greg StantonStephen L. Ferrara
$2.5M
Raised by the campaign
$1.6M
$2.5M
Spent by the campaign
$1.6M
$44.4K
Cash on hand
$0
Campaign money: FEC, through Dec 31, 2018; FEC, through Nov 26, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018