- The deadline for voter registration by mail is October 17, 2025 (must be postmarked by this date)
- The deadline for voter registration in person is October 17, 2025. Extended hours from 9:00 am to 8:00 pm on this date.
- The deadline for online voter registration is October 17, 2025 by 11:59 pm.
- Registration after October 18, 2025 apply to the following only and may register in the office of the Registrar of Voters from 9:00 am to 5:00 pm on Monday November 3, 2025.
- New Citizens
- New Town of Winchester residents
- Reach 18 years of age by October 17th.
- Same Day Registration takes place on Election Day in the Registrar of Voters Office from 6:00 am until 8:00 pm.