Big Sioux County, Minnesota Genealogy

Big Sioux
 * 20 Feb 1855 - Brown, MN was created by Minnesota Territory from BLUE EARTH (Minn.) which included parts of present South Dakota and Minnesota.
 * 11 Feb 1856 - Brown, MN fully organized.
 * 23 May 1857 - Brown, MN lost land to the creation of nine Minnesota Territory counties, including Big Sioux, all of which included parts of present South Dakota.
 * 1857-1858 - From 23 May 1857 to May 1858 this county was named Big Sioux County.
 * 11 May 1858 - The state of Minnesota was created and and Minnesota territory was disbanded, deleting Big Sioux to be Federal territory in South Dakota
 * 2 Nov 1889 - South Dakota officially admitted into the United States, including the land from Bix Sioux.


 * For records See: Pipestone County (Created May 1857)
 * For records See: Rock County (Created May 1857)
 * For records See: Brookings County (Created 1862)
 * For records See: Minnehaha County (Created 1862)
 * For records See: Moody County (Created 1873)

More information on names and dates is provided online by: Individual County Chronologies of Minnesota from NewberryWikipedia List of Historical Minnesota Counties, The Dakota's Individual County Chronologies