Assessor
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Seth Postma, Assessor
O'Brien County Assessor
O'Brien County Courthouse
155 S Hayes Ave
PO Box 446
Primghar, IA 51245
Staff:
Seth Postma, Assessor
Susan Wallin, Appraiser
Patrick Nelson, Appraiser
Anna Back, Clerk
Phone: (712) 957-3205
Fax: (712) 957-8014
Email: spostma@obriencounty.iowa.gov
Hours: 8-4:30 p.m. M-F