Welcome to Sioux County North Dakota History and Genealogy Presented by North Dakota Genealogy Trails a part of Genealogy Trails Volunteers Dedicated to Free Genealogy  This Site is Available for Adoption Our goal is to help you track your ancestors through time by transcribing genealogical and historical data for the free use of all researchers. We're looking for folks who share our dedication to putting data online and are interested in helping this project be as successful as it can be. If you are interested in joining Genealogy Trails, view our Volunteer Page for further information and then contact Kim. (Enough knowledge to make a basic webpage and a desire to transcribe data is required) We regret that we are unable to perform personal research for folks. All data we come across will be added to this site. We thank you for visiting and hope you'll come back again to view the updates we make to this site. If you would like to be kept informed of our state and county website updates, subscribe to any or all of our mailing lists North Dakota is covered under our "Upper Midwest" States mailing list.   Sioux County consists of 1,094 square miles, and, as of the 2000 Census, has a population of 4,044. Fort Yates is the county seat.  Cities, Communities & Townships in Sioux County Cannon Ball Fort Yates Menz Selfridge Solen   Online Data Biographies Births Cemeteries Census Court Records Deaths Family Bibles Marriages Military Newspapers Obituaries Wills   Website Updates: Surrounding Counties: Morton (N) Emmons (E) Corson County SD (S) Adams (W) Grant (NW)   Visit our ND State Site Visit our National Site © Genealogy Trails All data on this website is Copyright by Genealogy Trails with full rights reserved for original submitters.