2026 GENERAL
U.S. House · Illinois · 5th District
Arlington Heights, Palatine, Mount Prospect · One seat · current holder Mike Quigley (D) · 1 candidate declared
General election● Nov 3, 2026
Voter reg deadline16 days before Election Day
Early voting opens40 days before Election Day
State Voting Deadlines
Election Day · Nov 3, 2026- Voter reg · in person
- Election Day
- Voter reg · by mail
- 28 days before Election Day (postmarked)
- Voter reg · online
- 16 days before Election Day
- Early voting starts
- 40 days before Election Day
- Early voting ends
- 1 day before Election Day
- Absentee request · in person
- 1 day before Election Day
- Absentee request · by mail
- 5 days before Election Day (received)
- Ballot return · by mail
- Election Day (postmarked)
No-excuse absenteeAutomatic voter registrationSame-day registration
