2018Final results
2018 election for Michigan House District 30
Michigan House of Representatives · Michigan
Diana Farrington (R) won with 56.9% of the vote, defeating John P. Spica (D) by 13.7 points.
Diana FarringtonRepublican · winner · incumbent
56.9%17,511
John P. SpicaDemocrat
43.1%13,284
30,795 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