2018Flipped from RepublicanFinal resultsIncumbent defeated
2018 election for Illinois Representative District 81
Illinois House of Representatives · Illinois
Anne Stava (D) won with 50.9% of the vote, defeating David S. Olsen (R) by 1.9 points, a seat Republicans won last time.
Anne StavaDemocrat · winner
50.9%25,124
David S. OlsenRepublican · incumbent
49.1%24,194
49,318 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