The Boulder County Elections Division cannot withdraw or cancel your voter registration over the phone. You must withdraw your registration online or by mail/email.
Online Voter Registration Withdrawal/Cancellation
Requires either Colorado Driver’s License number, Colorado ID number or last 4-digits of your Social Security number.
- Withdraw my registration (disponible en español)
Voter Registration Withdrawal/Cancellation Form
Download one of the following forms:
Complete, sign, and return the form by one of the following methods:
- Mail: Elections Division, 1750 33rd St., Suite 200, Boulder, CO 80301
- Email: Vote@BoulderCountyVotes.gov
- Fax: 303-413-7728
