Motor Vehicle Registration

Office Hours: Monday, Tuesday, Thursday, Friday: 7:30 a.m. – 4:00 p.m.
Wednesdays: 8:30 a.m. – 4:00 p.m.

Our office will stop accepting walk-in customers if customer volume exceeds the staff’s ability to serve them prior to closing.

Motor Vehicle

The Assessor acts as a vendor for the Idaho State Transportation Department and provides a more convenient location for Canyon County residents to handle vehicle transactions.


Our office is now offering appointments. Additional appointments may be released daily depending on our customer flow. We encourage you to check after 10am to see if new appointments have been made available. Scheduled appointments will take priority over walk-in customers.

Walk in customers may have a wait time in excess of 2 hours depending on the day. Walk-in customers are encouraged to come mid-week before 11am or after 2pm. The best way to avoid any wait time is to schedule an appointment by clicking the black button below.

Insurance Requirements

For more information, please go to the Insurance section of


Department of Environmental Quality administers the emission testing program for Canyon County residents.
For information, please visit: or email them at

Parks & Recreation

Canyon County is not issuing registrations for boats, off-highways, snowmobiles, and boats except for restricted-use plates and boat trailers. Our office is still processing titles for these vehicles/vessels. To obtain registrations, please visit Idaho Departments of Parks and Recreation.

Main Assessor Location

111 N. 11th Ave Caldwell

Main Assessor – Suite 250
Plat Room – Suite 230
Rural Dept – Suite 220

Main Phone / Fax

P 208-454-7431
F 208-454-7349


Office Hours

Monday-Friday 7:30am – 4pm* 
(excluding holidays)


Title & Registration Location

Title & Registration Contact

P 208-455-6020
F 208-454-6019

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