Breadcrumb Ag Home Extension Extension County 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 L Fort Yates, ND 58538-0462 United States Physical Address: 223 2nd Ave 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 Isbell, Sue Extension Agent, 4-H Youth Development | CC, 4-H sue.isbell@ndsu.edu Phone 701-854-3481 ext.111 Results: 1 - 1 of 1 1