County	Date	Parent County	County Seat
Aitkin	1857	Cass, Itasca	Aitkin
Andy Johnson	-	Changed from Toombs 1858 to Wilkin 1868	-
Anoka	1857	Ramsey	Anoka
Becker	1858	Indian Lands	Detroit Lakes
Beltrami	1866	Unorganized Territory.	Bemidji
Benton	1849	Original County	Foley
Big Stone	1862	Pierce	Ortonville
Blue Earth	1853	Unorganized Territory	Mankato
Breckenridge		See Clay, Toombs & Wilkin
Brown	1855	Nicollett, Blue Earth	New Ulm
Buchanan		Discontinued
Carlton	1857	Pine, St. Louis	Carlton
Carver	1855	Hennepin	Chaska
Cass	1851	Original County	Walker
Chippewa	1862	Pierce	Montevideo
Chisago	1851	Washington	Center City
Clay	1862	Formerly Breckenridge	Moorhead
Clearwater	1902	Beltrami	Bagley
Cook	1874	Lake	Grand Marais
Cottonwood	1857	Brown	Windom
Crow Wing	1857	Cass, Aitkin	Brainerd
Dakota	1849	Original county	Hastings
Dodge	1855	Olmsted	Mantorville
Douglas	1858	Todd	Alexandria
Doty		See St. Louis & Lake
Faribault	1855	Blue Earth	Blue Earth
Fillmore	1853	Wabasha	Preston
Freeborn	1855	Wabasha	Albert Lea
Goodhue	1853	Wabasha	Red Wing
Grant	1868	Stearns	Elbow Lake
Hennepin	1852	Dakota	Minneapolis
Houston	1854	Fillmore	Caledonia
Hubbard	1883	Cass	Park Rapids
Isanti	1857	Anoka	Cambridge
Itasca	1849	Original County	Grand Rapids
Jackson	1857	Unorg. Terr	Jackson
Johnson		See Wilkin
Kanabec	1858	Pine	Mora
Kandiyohi	1858	Meeker	Willmar
Kittson	1878	Unorg. Terr. - formerly Pembina	Hallock
Koochiching	1906	Itasca	International Falls
Lac Qui Parle	1871	Brown, Redwood	Madison
Lake	1856	Formerly Doty	Two Harbors
Lake of the Woods	1922	Beltrami	Baudette
Le Sueur	1853	Unorg. Terr.	Le Center
Lincoln	1873	Lyon	Ivanhoe
Lyon	1868	Redwood	Marshall
McLeod	1856	Carver	Glencoe
Mahnomen	1906	Becker, Norman	Mahnomen
Mankahta		Discontinued
Marshall	1879	Kittson	Warren
Martin	1857	Faribault, Brown	Fairmont
Meeker	1856	Wright, Stearns	Litchfield
Mille Lacs	1857	Kanabec	Milaca
Monongalia		Discontinued. See Kandiyohi
Morrison	1856	Benton, Stearns	Little Falls
Mower	1855	Fillmore, Freeborn	Austin
Murray	1857	Lyon	Slayton
Nicollet	1853	Unorg. territory	St. Peter
Nobles	1857	Jackson	Worthington
Norman	1881	Polk	Ada
Olmsted	1855	Unorg. Territory	Rochester
Otter Tail	1858	Pembina, Cass	Fergus Falls
Pembina		Changed to Kittson, 1878
Pennington	1910	Red Lake	Thief River Falls
Pierce		Disorganized
Pine	1856	Unorg. Lands	Pine City
Pipestone	1857	Murray	Pipestone
Polk	1858	Indian Lands	Crookston
Pope	1862	Pierce	Glenwood
Ramsey	1849	Original county	St. Paul
Red Lake	1896	Polk	Red Lake Falls
Redwood	1862	Brown	Redwood Falls
Renville	1855	Unorg. Territory	Olivia
Rice	1853	Original County	Faribault
Rock	1857	Nobles as Unorg. Co. Brown	Luverne
Roseau	1894	Kittson	Roseau
St. Louis	1855	Doty (now Lake)	Duluth
Scott	1853	Dakota	Shakopee
Sherburne	1856	Benton	Elk River
Sibley	1853	Unorg. Territory	Gaylord
Stearns	1855	Indian Lands	St. Cloud
Steele	1855	Unorg. Terr., Dodge	Owatonna
Stevens	1862	Pierce, Big Stone	Morris
Superior		Changed to St. Louis 1855
Swift	1870	Chippewa, Unorg. Lands	Benson
Todd	1855	Stearns	Long Prairie
Toombs		Changed to Andy Johnson 1858, Wilkin 1868
Traverse	1862	Toombs	Wheaton
Wabasha	1849	Original county	Wabasha
Wadena	1858	Cass, Todd	Wadena
Wahnata		Disorganized
Waseca	1857	Steele	Waseca
Washington	1849	Original county	Stillwater
Watonwan	1860	Brown	St. James
Wilkin	1868	Cass, Toombs, Johnson	Breckenridge
Winona	1854	Unorg. Territory	Winona
Wright	1855	Hennepin	Buffalo
Yellow Medicine	1871	Redwood	Granite Falls