ISAA
Sioux County Assessor
Ross Simmelink
Assessor
January 1, 2004
Brenda Uhl
Deputy Assessor
September 1, 2010
Sioux County Courthouse
210 Central Ave SW P O Box 48
Orange City IA 51041-0048
Office Hours: 8:00 AM to 4:30 PM
Phone: 712-737-4274
Fax: (712) 737-6482
 
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