City of Thornton Sex Offender Information
Appointment and Fees
Until further notice, new registrations and re-registrations will be by phone appointment only.
Public access to the Police Department is prohibited. Please Call 720-977-5077
to schedule. Please arrive 15 minutes before your scheduled appointment in order to complete required paperwork. No walk-in's will be accepted. Please click here to schedule your appointment online or call 720-977-5030.
When you arrive for your appointment, please check in at the Records Department in the lobby of the Thornton Police Department (9551 Civic Center Drive, Thornton, CO 80229) to begin your paperwork.
Quarterly and Yearly registrations - $25
Address Changes - No Charge
De-registrations - No Charge
Cash or card are accepted and a photo ID is required. (A current driver's license, state-issued ID card, military ID and passport are acceptable forms of ID). If you are a new register, you must also bring proof of residency, including a copy of your lease or a handwritten and signed note from your landlord or the property owner. If you are unable to pay the fee at the time you register, you must still complete your sex offender registration by the required date.
IMPORTANT: Penalties for failure to comply with mandatory sex offender registration are substantial. In most cases, violation of the registration requirement constitutes a separate offense.