Henry M. Jackson won with 69.0% of the vote (943,655 votes), ahead of Doug Jewett with 24.3% (332,273 votes).
The margin between the first two candidates was 44.7 percentage points (611,382 votes). The party margin (Republican share minus Democratic share) was a Democratic lead of 44.7 points.
Compared with the previous comparable race in the same area, the party margin moved 53.0 points toward Democrats. The winning party changed.
1,368,476 votes were counted in this race, for 4 candidates or options.
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