2012Final resultsIncumbent defeated
2012 election for Ohio House District 99
Ohio House of Representatives · Ohio
John Patterson (D) won with 53.0% of the vote, defeating Casey Kozlowski (R) by 6.0 points.
John PattersonDemocrat · winner
53.0%25,230
Casey KozlowskiRepublican · incumbent
47.0%22,395
47,625 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