Dubuque County, Iowa Tax Assessors' Office

Where is the Dubuque County Tax Assessor's Office?

While many counties have county-wide tax assessors, Dubuque County has one cities and towns with their own local tax assessors. If your property is located within any of these localities, see that page for your tax assessor's contact information.

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

The Dubuque 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 Dubuque 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 Dubuque 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 Dubuque County Assessor's Office at (563) 589 4432 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.

How can I contact Dubuque County?

You can try contacting the Dubuque 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 Dubuque County is located in the County Courthouse in Dubuque, which is where the Dubuque County Assessors' Office is also located. You can direct your general inquiries to Dubuque County with the contact info listed below.

Dubuque County Phone Number

563-589-4441

Dubuque County Fax Number

563-489-4478

Dubuque County County Courthouse Address

County Courthouse
720 Central Avenue
Dubuque, IA 52001-7033

Useful Dubuque County Links:

• Property Tax Search Tool & Mapping
• GIS Map
• Dubuque County Assessors' Office Homepage
• Property Sales Records
• Dubuque County Government Homepage
• Make a Property Tax Payment