2012Final results
2012 election for Michigan House District 21
Michigan House of Representatives · Michigan
Dian Slavens (D) won with 61.6% of the vote, defeating Joe Barnabei (R) by 23.2 points.
Dian SlavensDemocrat · winner · incumbent
61.6%26,605
Joe BarnabeiRepublican
38.4%16,590
43,195 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 2012
Races before and after
Source: Harvard Dataverse / Carl KlarnerUpdated Sep 30, 2026, 7:29 AM ET