Breadcrumb Ag Home Extension County Extension Offices Sioux County Contact Us Page Title Contact Us County Image Body County Extension Office Sioux County 4-H Contact Us Events Widgets Sioux County Mailing address: Address PO Box 462 Fort Yates, ND 58538-0462 United States Physical Address: 313 Beldon Street Fort Yates, ND 58538 Phone 701-854-3412 Email NDSU.Sioux.Extension@ndsu.edu URL Visit website Office hours: 8:30 a.m.-4:30 p.m. Name Position Email Phone Dunn, Cindy Administrative Secretary | CC cindy.dunn@ndsu.edu Phone 701-854-3412 Isbell, Sue Extension Agent, 4-H Youth Development | CC, 4-H sue.isbell@ndsu.edu Phone 701-854-3412 Results: 1 - 2 of 2 1