2018Final results
2018 election for Washington's 9th District
U.S. House · Washington
Adam Smith (D) won with 65.8% of the vote, defeating Sarah Smith (D) by 34.7 points.
Adam SmithDemocrat · winner
65.8%163,345
Sarah SmithDemocrat
31.1%77,222
Write-ins and other votesOther party
3.0%7,563
248,130 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.
Adam SmithNo Republican
$1.4M
Raised by the campaign
—
$1.6M
Spent by the campaign
—
$191.8K
Cash on hand
—
Other candidates' campaigns: Sarah Smith $125.6K.
Campaign money: FEC, through Dec 31, 2018.
Source: FEC campaign filingsUpdated Dec 31, 2018