***The 2020 House Election Interactive Map is now available.***

0ptimus House Model

Final Ratings: November 5, 2018

This is a House forecast map derived from district level probabilities calculated by the 0ptimus Election Model.

The toss-up tan color is used when neither party has a 60% or higher chance of winning. Color gradients are used to show higher Democratic and Republican probabilities, deepening as the chance of winning increases: Light (60%+), Medium (75%+), Dark (90%+).

Use this map as a starting point to create and share your own 2018 House forecast. You can also view this forecast as a table.

Map Color Palette

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Safe Likely Leans Tilt

Overview: New Color Features >>


Current House
115th Congress
Interactive Map
Contested 2018 
2019 House
116th Congress
Map Updated: Nov. 7, 2018 at 01:10 UTC (Nov. 6, 8:10 PM EST)
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House Elections 2018
All 435 Voting Seats. 218 Needed for Control.
Current (a)

Competitive 2018 House Races

District Incumbent Party Since Term Predictions
2016 Margins

(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.

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