Find out about the list of all South Dakota (SD) counties in alphabetical order including their size, county seats and numbers.
A
Aurora County (SD)
B
Beadle County (SD)
Bennett County (SD)
Bon Homme County (SD)
Brookings County (SD)
Brown County (SD)
Brule County (SD)
Buffalo County (SD)
Butte County (SD)
C
Campbell County (SD)
Charles Mix County (SD)
Clark County (SD)
Clay County (SD)
Codington County (SD)
Corson County (SD)
Custer County (SD)
D
Davison County (SD)
Day County (SD)
Deuel County (SD)
Dewey County (SD)
Douglas County (SD)
E
Edmunds County (SD)
F
Fall River County (SD)
Faulk County (SD)
G
Grant County (SD)
Gregory County (SD)
H
Haakon County (SD)
Hamlin County (SD)
Hand County (SD)
Hanson County (SD)
Harding County (SD)
Hughes County (SD)
Hutchinson County (SD)
J
Jackson County (SD)
Jerauld County (SD)
Jones County (SD)
K
Kingsbury County (SD)
L
Lake County (SD)
Lawrence County (SD)
Lincoln County (SD)
Lyman County (SD)
M
Marshall County (SD)
McCook County (SD)
McPherson County (SD)
Meade County (SD)
Mellette County (SD)
Miner County (SD)
Minnehaha County (SD)
Moody County
O
Oglala Lakota County (SD)
P
Pennington County (SD)
Perkins County (SD)
Potter County (SD)
Roberts County (SD)
S
Sanborn County (SD)
Spink County (SD)
Stanley County (SD)
Sully County (SD)
T
Todd County (SD)
Tripp County (SD)
Turner County (SD)
U
Union County (SD)
W
Walworth County (SD)
Yankton County (SD)
Z
Ziebach County (SD)
List of South Dakota counties in printable and scannable format
A
Aurora County (SD)
B
Beadle County (SD), Bennett County (SD), Bon Homme County (SD), Brookings County (SD), Brown County (SD), Brule County (SD), Buffalo County (SD), Butte County (SD)
C
Campbell County (SD), Charles Mix County (SD), Clark County (SD), Clay County (SD), Codington County (SD), Corson County (SD), Custer County (SD)
D
Davison County (SD), Day County (SD), Deuel County (SD), Dewey County (SD), Douglas County (SD)
E
Edmunds County (SD)
F
Fall River County (SD), Faulk County (SD)
G
Grant County (SD), Gregory County (SD)
H
Haakon County (SD), Hamlin County (SD), Hand County (SD), Hanson County (SD), Harding County (SD), Hughes County (SD), Hutchinson County (SD)
J
Jackson County (SD), Jerauld County (SD), Jones County (SD)
K
Kingsbury County (SD)
L
Lake County (SD), Lawrence County (SD), Lincoln County (SD), Lyman County (SD)
M
Marshall County (SD), McCook County (SD), McPherson County (SD), Meade County (SD), Mellette County (SD), Miner County (SD), Minnehaha County (SD), Moody County
O
Oglala Lakota County (SD)
P
Pennington County (SD), Perkins County (SD), Potter County (SD), Roberts County (SD)
S
Sanborn County (SD), Spink County (SD), Stanley County (SD), Sully County (SD)
T
Todd County (SD), Tripp County (SD), Turner County (SD)
U
Union County (SD)
W
Walworth County (SD), Yankton County (SD)
Z
Ziebach County (SD)
List of all South Dakota counties and their county size
Aurora County SD — 710 sq mi
Beadle County SD — 1,265 sq mi
Bennett County SD — 1,191 sq mi
Bon Homme County SD — 564 sq mi
Brookings County SD — 792 sq mi
Brown County SD — 1,713 sq mi
Brule County SD — 819 sq mi
Buffalo County SD — 488 sq mi
Butte County SD — 2,250 sq mi
Campbell County SD — 737 sq mi
Charles Mix County SD — 1,098 sq mi
Clark County SD — 967 sq mi
Clay County SD — 412 sq mi
Codington County SD — 688 sq mi
Corson County SD — 2,470 sq mi
Custer County SD — 1,557 sq mi
Davison County SD — 436 sq mi
Day County SD — 1,031 sq mi
Deuel County SD — 637 sq mi
Dewey County SD — 2,302 sq mi
Douglas County SD — 432 sq mi
Edmunds County SD — 1,210 sq mi
Fall River County SD — 1,740 sq mi
Faulk County SD — 1,006 sq mi
Grant County SD — 688 sq mi
Gregory County SD — 1,015 sq mi
Haakon County SD — 1,811 sq mi
Hamlin County SD — 507 sq mi
Hand County SD — 1,437 sq mi
Hanson County SD — 435 sq mi
Harding County SD — 2,671 sq mi
Hughes County SD — 742 sq mi
Hutchinson County SD — 814 sq mi
Hyde County SD — 861 sq mi
Jackson County SD — 1,864 sq mi
Jerauld County SD — 533 sq mi
Jones County SD — 970 sq mi
Kingsbury County SD — 864 sq mi
Lake County SD — 575 sq mi
Lawrence County SD — 800 sq mi
Lincoln County SD — 578 sq mi
Lyman County SD — 1,642 sq mi
Marshall County SD — 887 sq mi
McCook County SD — 576 sq mi
McPherson County SD — 1,152 sq mi
Meade County SD — 3,471 sq mi
Mellette County SD — 1,311 sq mi
Miner County SD — 572 sq mi
Minnehaha County SD — 810 sq mi
Moody County SD — 520 sq mi
Oglala Lakota County SD — 2,094 sq mi
Pennington County SD — 2,777 sq mi
Perkins County SD — 2,870 sq mi
Potter County SD — 890 sq mi
Roberts County SD — 1,106 sq mi
Sanborn County SD — 570 sq mi
Spink County SD — 1,504 sq mi
Stanley County SD — 1,444 sq mi
Sully County SD — 1,007 sq mi
Todd County SD — 1,389 sq mi
Tripp County SD — 1,612 sq mi
Turner County SD — 617 sq mi
Union County SD — 467 sq mi
Walworth County SD — 709 sq mi
Yankton County SD — 532 sq mi
Ziebach County SD — 1,961 sq mi
List of all South Dakota counties and their county seats
Aurora County SD — Plankinton
Beadle County SD — Huron
Bennett County SD — Martin
Bon Homme County SD — Tyndall
Brookings County SD — Brookings
Brown County SD — Aberdeen
Brule County SD — Chamberlain
Buffalo County SD — Gann Valley
Butte County SD — Belle Fourche
Campbell County SD — Mound City
Charles Mix County SD — Lake Andes
Clark County SD — Clark
Clay County SD — Vermillion
Codington County SD — Watertown
Corson County SD — McIntosh
Custer County SD — Custer
Davison County SD — Mitchell
Day County SD — Webster
Deuel County SD — Clear Lake
Dewey County SD — Timber Lake
Douglas County SD — Armour
Edmunds County SD — Ipswich
Fall River County SD — Hot Springs
Faulk County SD — Faulkton
Grant County SD — Milbank
Gregory County SD — Burke
Haakon County SD — Philip
Hamlin County SD — Hayti
Hand County SD — Miller
Hanson County SD — Alexandria
Harding County SD — Buffalo
Hughes County SD — Pierre
Hutchinson County SD — Olivet
Hyde County SD — Highmore
Jackson County SD — Kadoka
Jerauld County SD — Wessington Springs
Jones County SD — Murdo
Kingsbury County SD — De Smet
Lake County SD — Madison
Lawrence County SD — Deadwood
Lincoln County SD — Canton
Lyman County SD — Kennebec
Marshall County SD — Britton
McCook County SD — Salem
McPherson County SD — Leola
Meade County SD — Sturgis
Mellette County SD — White River
Miner County SD — Howard
Minnehaha County SD — Sioux Falls
Moody County SD — Flandreau
Oglala Lakota County SD — Hot Springs (administrative), courthouse in Pine Ridge
Pennington County SD — Rapid City
Perkins County SD — Bison
Potter County SD — Gettysburg
Roberts County SD — Sisseton
Sanborn County SD — Woonsocket
Spink County SD — Redfield
Stanley County SD — Fort Pierre
Sully County SD — Onida
Todd County SD — Winner (administrative), courthouse in Mission
Tripp County SD — Winner
Turner County SD — Parker
Union County SD — Elk Point
Walworth County SD — Selby
Yankton County SD — Yankton
Ziebach County SD — Dupree
List of South Dakota counties by region
West River (west of the Missouri River)
Bennett County SD
Butte County SD
Corson County SD
Custer County SD
Dewey County SD
Fall River County SD
Haakon County SD
Harding County SD
Jackson County SD
Lawrence County SD
Lyman County SD
Meade County SD
Mellette County SD
Pennington County SD
Perkins County SD
Shannon (Oglala Lakota) County SD
Stanley County SD
Todd County SD
Tripp County SD
Ziebach County SD
East River (east of the Missouri River)
Aurora County SD
Beadle County SD
Bon Homme County SD
Brookings County SD
Brown County SD
Brule County SD
Buffalo County SD
Campbell County SD
Charles Mix County SD
Clark County SD
Clay County SD
Codington County SD
Davison County SD
Day County SD
Deuel County SD
Douglas County SD
Edmunds County SD
Faulk County SD
Grant County SD
Gregory County SD
Hamlin County SD
Hand County SD
Hanson County SD
Hughes County SD
Hutchinson County SD
Hyde County SD
Jerauld County SD
Jones County SD
Kingsbury County SD
Lake County SD
Lincoln County SD
Marshall County SD
McCook County SD
McPherson County SD
Miner County SD
Minnehaha County SD
Moody County SD
Potter County SD
Roberts County SD
Sanborn County SD
Spink County SD
Sully County SD
Turner County SD
Union County SD
Walworth County SD
Yankton County SD
What is the largest county in South Dakota?
The largest county in South Dakota by land area is Meade County which covers 3,471 sq mi.
What is the smallest county in North Dakota?
The smallest county in North Dakota is Clay County which covers 412 sq mi.