Stage 2 Fire Restrictions Enacted for Western Boulder County; Stage 1 Fire Restrictions Enacted for Eastern Boulder County.

Change Mailing Address

Change Your Mailing Address

To change your mailing address, you must first create an account with our vendor, Just Appraised, if you do not already have one.

After you register, check for a confirmation email to activate your account. Then log in and find the form called “Change of Address.” Follow the instructions to complete and submit the form.

Create a Just Appraised account and request a change of address

Your address change will be sent to both the Assessor’s Office and the Treasurer’s Office.

Contact Us

Treasurer's Office

Phone: 303-441-3520
Fax: 303-441-3598

treasurer@bouldercounty.gov

eforeclosures@bouldercounty.gov

Mailing Address

P.O. Box 471
Boulder, CO 80306

Boulder


1325 Pearl St.
Boulder, CO 80302
1st Floor

Hours: 8 a.m. - 4:30 p.m.
Monday - Friday

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Longmont


515 Coffman St.
Longmont, CO 80501
Suite 113

Hours: 8 a.m. - 4:30 p.m.
Mondays only

Lafayette


1755 S. Public Road
Lafayette, CO 80026


Hours: 8 a.m. - 4:30 p.m.
Tuesdays Only
Open Jan. 27 through Sep. 1, 2026