Sex Offender Registry

The Boulder County Sheriff’s Office is responsible for registering all sex offenders housed at the Boulder County Jail as required and those registrants who live in unincorporated Boulder County, to include Lyons, Nederland, and Superior.

The Boulder County Sheriff’s Office does not post a list of our registered sex offenders. The Colorado Bureau of Investigation (CBI) posts adult sex offenders with felony convictions under the sex offender registry information. You may obtain a list of BCSO’s registrants from the CBI at the Colorado Sex Offender Registry.

This information may not be used to inflict retribution or additional punishment on any person.

How to Register as a Sex Offender

Please call 303-441-3611 to schedule a registration appointment.

Registration with the Boulder County Sheriff’s Office is by appointment only. Registration appointments are scheduled on Tuesdays and Thursdays between 8 a.m. – 3 p.m.

Registration appointments are completed at the Boulder County Sheriff’s Office headquarters building: 5600 Flatiron Parkway, Boulder, CO.

The Registration Form and Notice to Register Form must be completed for each appointment. Please do not initial, date, or sign the forms prior to your appointment. The Registration Form and Notice to Register along with additional forms are located on the CBI’s website.

Please bring a valid photo ID to your appointment.

Registration fees are collected at the time of your appointment. We accept cash, debit card and credit card payments. There is a small processing fee for credit/debit card payments.

• Initial Registration Fee: $75
• Annual Registration Fee: $25
• Quarterly Registration Fee: $15

Sex Offender Registration Forms

The Sex Offender Registration Form, Notice to Register are required for every registration. The forms are available on the CBI website.

Please fill out the forms, however, signatures and initials on the Notice to Register as a Sex Offender Form, must occur in the presence of the law enforcement personnel responsible for registration. Bring a copy the required forms to your appointment.