1980Final results
1980 election for Washington Legislative District 18-1
Washington House of Representatives · Washington
Alan Thompson (D) won re-election with 58.9% of the vote, defeating Mark Peters (R) by 17.7 points.
Alan ThompsonDemocrat · winner · incumbent
58.9%16,085
Mark PetersRepublican
41.1%11,246
27,331 votes
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET
The seat over time
D − R margin in this seat's races around 1980
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)