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O'Brien County, Iowa - Assessor's Office

The O'Brien County Assessor is responsible for appraising real estate and assessing a property tax on properties located in O'Brien County, Iowa. You can contact the O'Brien County Assessor for:

  • Checking the O'Brien County property tax due date
  • Paying your property tax
  • Your property tax bill
  • Information on your property's tax assessment
  • Reporting upgrades or improvements
  • Appealing your property tax appraisal

155 S. Hayes AvenueThe O'Brien County Assessor's Office is located in Primghar, Iowa. Primghar is the county seat of O'Brien County, where most local government offices are located. The assessor's office is located in the same building as the O\'brien County Courthouse, at 155 South Hayes Avenue.

O'Brien County Assessor Contact Information

O'Brien County Assessor's Office Services

There are three major roles involved in administering property taxes - Tax Assessor, Property Appraiser, and Tax Collector. Note that in some counties, one or more of these roles may be held by the same individual or office. For example, the O'Brien County Tax Assessor may also serve as the O'Brien County Tax Appraiser.

  1. The O'Brien County Tax Assessor is responsible for setting property tax rates and collecting owed property tax on real estate located in O'Brien County.
  2. The O'Brien County Property Appraiser is responsible for determining the taxable value of each piece of real estate, which the Tax Assessor will use to determine the owed property tax.
  3. The O'Brien County Tax Collector is responsible for collecting property tax from property owners. They issue yearly tax bills to all property owners in O'Brien County, and work with the sheriff's office to foreclose on properties with delinquent taxes.

When contacting O'Brien County about your property taxes, make sure that you are contacting the correct office. You can call the O'Brien County Tax Assessor's Office for assistance at 712-957-3205. Remember to have your property's Tax ID Number or Parcel Number available when you call!

If you have documents to send, you can fax them to the O'Brien County assessor's office at 712-957-8014. Please call the assessor's office in Primghar before you send documents or if you need to schedule a meeting. If you have general questions, you can call the O\'brien County Courthouse at 712-757-3225.


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The median property tax in O'Brien County, Iowa is $915.00


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