2018 Arizona House Election Interactive Map

All US House seats to be contested in 2018
Arizona has nine congressional districts. Republicans hold a five to four advantage. The 2nd district, being vacated by Republican Martha McSally - she's running for Senate - is the seat most likely to change parties in 2018.

To create your own forecast for the midterms, visit the 2018 House Interactive Map.
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Hover over a district for details.

District Incumbent Party Since Term Predictions Margin of Victory
Pro Map House(a) President(b)
AZ-1 Tom O'Halleran
2017 1st
7.3% 1.1%
AZ-2 Martha McSally
2015 2nd
13.9% 4.9%
Incumbent not running for re-election in 2018.
AZ-6 David Schweikert
2011 4th
24.3% 10.0%
AZ-8 Debbie Lesko
2018 1st
37.1% 21.1%
AZ-3 Raul Grijalva
2003 8th
* 29.9%
AZ-4 Paul Gosar
2011 4th
42.9% 40.2%
AZ-5 Andy Biggs
2017 1st
28.2% 21.1%
AZ-7 Ruben Gallego
2015 2nd
50.5% 49.2%
AZ-9 Kyrsten Sinema
2013 3rd
21.9% 16.3%
Incumbent not running for re-election in 2018.

(a)Source: Ballotpedia (for margins). The margin is the percentage difference between the top two vote-getters in 2016.
More recent results (i.e., special elections held in 2017-18 for vacancies) are not displayed.
* Race was uncontested | ^Top two vote-getters were from the same party

(b)Source: Daily Kos. The margin is the percentage difference between Donald Trump and Hillary Clinton.