County Treasurer

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Custodian of all county funds, records revenue, collects delinquent property taxes, conducts tax foreclosures, custodian of all property tax rolls and certifications, and manages dog licenses.

The mission of the Ottawa County Treasurer is to administer all roles and duties in a professional, effective and responsive manner thereby assuring confidence that both sound management and the best interest(s) of the public are of foremost importance.

Holiday Schedule

Please note the county building will be closed on December 23rd, 26th, and January 2nd in observance of Christmas Eve, Christmas Day, and New Year's Day.

The County Treasurer is a member of the County Elections Commission, County Plat Board, County Tax Allocation Board, County Apportionment Commission, Ottawa County Economic Development Corporation, Ottawa County Michigan Insurance Authority, Technology Advisory Group and chair of Ottawa County Land Bank Authority.


Bradley J. Slagh

  • Bradley J. Slagh
    County Treasurer

West Olive Office

  • 12220 Fillmore St
    Room 155
    West Olive, MI 49460-0310
  • Phone: (616) 994-4501
    Fax: (616) 994-4509
  • Toll Free: (888) 731-1001
    ext. 4501
  • Monday - Friday:
    8:00am - 5:00pm

Grand Haven Office

  • Grand Haven Court House
    414 Washington Ave
    1st Floor
    Grand Haven, MI 49417
  • Phone: (616) 846-8357

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