Iowa Property Tax Assessors

Johnson County, Iowa Tax Assessors' Office

Johnson County Assessors Phone Number
Johnson County Assessor
913 S. Dubuque Street, Suite 205
Johnson County Administration Building
Iowa City, Iowa 52240

Where is the Johnson County Tax Assessor's Office?

The Johnson County Tax Assessor Office is located in the Johnson County Administration Building building in Iowa City, Iowa.

While many counties have county-wide tax assessors, Johnson 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 Johnson County Assessor's Office do for me?

The Johnson 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 Johnson 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 Johnson 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 Johnson County Assessor's Office at (319) 356 6078 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 Johnson County Facts:

The median home value in Johnson County is between $173,230.00 and $180,770.00. Property tax rates are based on property values.

How can I contact Johnson County?

You can try contacting the Johnson 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 Johnson County is located in the County Administration Building in Iowa City, which is where the Johnson County Assessors' Office is also located. You can direct your general inquiries to Johnson County with the contact info listed below.

Johnson County Phone Number


Johnson County County Administration Building Address

County Administration Building
913 S. Dubuque St.
Iowa City, IA 52240-4273

Useful Johnson County Links:

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