2018Final results
2018 election for Michigan House District 31
Michigan House of Representatives · Michigan
William J. Sowerby (D) won with 59.9% of the vote, defeating Lisa Valerio-Nowc (R) by 19.8 points.
William J. SowerbyDemocrat · winner · incumbent
59.9%20,791
Lisa Valerio-NowcRepublican
40.1%13,925
34,716 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