Colorado Property Tax Assessors

Boulder County, Colorado Tax Assessors' Office

Boulder County Assessors Phone Number
Boulder County Assessor
1325 Pearl Street, Second Floor
Boulder County Courthouse
Boulder, Colorado 80302
Boulder County Assessors Fax Number 303-441-4996 (Fax)

Where is the Boulder County Tax Assessor's Office?

The Boulder County Tax Assessor Office is located in the Boulder County Courthouse building in Boulder, Colorado.

What can the Boulder County Assessor's Office do for me?

The Boulder County Tax Assessor's Office oversees the appraisal and assessment of properties as well as the billing and collection of property taxes for all taxable real estate located in Boulder County.

Contact the assessor's office if you need help with paying your property taxes, applying for a homestead exemption or other tax exemption, reporting upgrades to your home, appealing your property tax assessment, or verifying your property records.

Submitting a Boulder County property tax appeal

If you believe that your house has been unfairly overappraised (i.e. appraised at a value higher than the true market value of the property), you can attempt to get your home re-appraised at a lower value by contacting the Assessor's Office to submit a property tax appeal.

You will have to submit a form describing your property and sufficient proof that it is overassessed, including valuations of similar homes nearby as evidence. If your appeal is accepted, your home assessment (and property taxes) will be lowered as a result.

If you would like to appeal your property, call the Boulder County Assessor's Office at (303) 441 4830 and ask for a property tax appeal form. Keep in mind that property tax appeals are generally only accepted in a 1-3 month window each year.

For more information and example appeals, see how to appeal your property taxes.

Useful Boulder County Facts:

The median home value in Boulder County is between $349,786.00 and $356,814.00. Property tax rates are based on property values.

How can I contact Boulder County?

You can try contacting the Boulder County local government directly with any issues the Assessor's Office can't solve. In many counties, certain property records such as deeds are kept in the county courthouse or county archives instead of at the tax assessors' office.

The county seat for Boulder County is located in the County Courthouse in Boulder, which is located at 1325 Pearl St. You can direct your general inquiries to Boulder County with the contact info listed below.

Boulder County Phone Number


Boulder County Fax Number


Boulder County County Courthouse Address

County Courthouse
1325 Pearl St
Boulder, CO 80302

Useful Boulder County Links:

Links broken? Please contact us if any of our Boulder County links are not working or are out-of-date.