North Star Human Service Zone Posted on December 8, 2020 Suite 101 Upper Missouri District Health Unit (UMDHU) Suite 202 North Star Human Service Zone (formerly Social Services) Recent news Adulticide – Williston – 7/6/2022 Posted on July 4, 2022 Adulticide – Countywide – 6/30-7/1/2022 Posted on June 30, 2022 Adulticide – Williston – 6/29/2022 Posted on June 29, 2022 CR 23 & CR 15 – Open for travel effective immediately – 6/28/2022 Posted on June 28, 2022 Adulticide – Williston – 6/21 – 6/26/2022 Posted on June 26, 2022 All news ยป