Iowa held special elections on November 8, 2011, deciding 1 legislative seat.
Legislature
- House (100 seats): 40 D, 60 R before the election, 40 D, 60 R after; control stayed with Republicans.
- Senate (50 seats): 26 D, 24 R before the election, 0 D, 0 R after.
Legislative races
| Race | Winner | Others | Notes |
|---|---|---|---|
| Senate 18 | Liz Mathis (D) 55.99% | Cindy Golding (R) 43.38%, Jon Tack 0.63% |