2020Final results
2020 election for Idaho Legislative District 4
Idaho State Senate · Idaho
Mary Souza (R) won with 64.5% of the vote, defeating Sharon L. Williams (D) by 29.0 points.
Mary SouzaRepublican · winner · incumbent
64.5%17,462
Sharon L. WilliamsDemocrat
35.5%9,608
27,070 votes
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET
The seat over time
D − R margin in this seat's races around 2020
Races before and after
Source: MIT Election Data and Science LabUpdated Oct 1, 2026, 10:09 AM ET