1970Final results
1970 election for Washington Legislative District 40-1
Washington House of Representatives · Washington
Jim Costanti (R) won with 51.3% of the vote, defeating Mack Johnson (D) by 2.5 points.
Jim CostantiRepublican · winner
51.3%10,663
Mack JohnsonDemocrat
48.7%10,135
20,798 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 1970
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)