South Dakota County Map, List of Counties in South Dakota with Seats

The U.S. state of South Dakota is divided into 66 counties. Explore the South Dakota County Map, list of Counties in south-dakota along with their County Seats in alphabetical order and check their population, areas and the date of formation.

South Dakota County Map

About Counties of South Dakota

U.S State of South Dakota is seventeenth largest state by area. It is the fifth least populated state in United States. The state South Dakota became a state in the year 1889. South Dakota is located in the upper Midwestern part of the country. The state was named after Native American tribes called Lakota and Dakota Sioux. The capital city of the state is Pierre. The state is very famous for tourism and agriculture.

South Dakota Counties are 66 in number. The biggest county among the South Dakota Counties is Meade which covers 3,470.98 square miles. The other geographically big counties are Perkins and Pennington. Minnehaha County has the highest population with 197,214. Pennington and Lincoln counties have also large number of population of all the South Dakota Counties. The poorest county in the state is Ziebach County. The county that has highest per capita income is Union county among all South Dakota Counties. The largest cities of the state are Sioux Falls, Rapid City, Aberdeen, Brookings, Watertown, Mitchell, Yankton and Pierre.

U.S State of South Dakota follows federal form of government like all other states in the country. The supreme law of the land is the constitution of South Dakota. The authority of the state is divided among three branches of the state namely Executive branch, Legislative branch and Judicial branch. The citizens of South Dakota were blessed with an option that they can amend the constitution. The executive branch is headed by the governor of South Dakota. The legislative branch of the state consists of two houses namely the Senate and the House of Representatives. The judicial branch of the state is made up of many courts like the Supreme Court which is the highest court in the state, circuit courts and so on.

The U.S. state of south-dakota has 88 counties. south-dakota is the 34th-largest state by area and with a population of nearly 11.7 million, is the seventh-most populous State. south-dakota is located in the Midwestern region of the United States.

List of Counties in South Dakota with County Seats

S.NCountyCounty seatFIPS codeFormedPopulationArea
1Aurora CountyPlankinton318812,747708 sq (1,834 km2)
2Beadle CountyHuron5187919,1491,259 sq (3,261 km2)
3Bennett CountyMartin719093,3811,185 sq (3,069 km2)
4Bon Homme CountyTyndall918627,003563 sq (1,458 km2)
5Brookings CountyBrookings11186234,375794 sq (2,056 km2)
6Brown CountyAberdeen13187938,3011,713 sq (4,437 km2)
7Brule CountyChamberlain1518755,247819 sq (2,121 km2)
8Buffalo CountyGann Valley1718731,948471 sq (1,220 km2)
9Butte CountyBelle Fourche19188310,2432,249 sq (5,825 km2)
10Campbell CountyMound City2118731,377736 sq (1,906 km2)
11Charles Mix CountyLake Andes2318629,3731,098 sq (2,844 km2)
12Clark CountyClark2518733,837958 sq (2,481 km2)
13Clay CountyVermillion27186214,967412 sq (1,067 km2)
14Codington CountyWatertown29187728,325688 sq (1,782 km2)
15Corson CountyMcIntosh3119093,9022,473 sq (6,405 km2)
16Custer CountyCuster3318758,3181,558 sq (4,035 km2)
17Davison CountyMitchell35187319,956436 sq (1,129 km2)
18Day CountyWebster3718795,4491,029 sq (2,665 km2)
19Deuel CountyClear Lake3918624,295624 sq (1,616 km2)
20Dewey CountyTimber Lake4118735,2392,303 sq (5,965 km2)
21Douglas CountyArmour4318732,835434 sq (1,124 km2)
22Edmunds CountyIpswich4518733,9861,146 sq (2,968 km2)
23Fall River CountyHot Springs4718836,9731,740 sq (4,507 km2)
24Faulk CountyFaulkton4918732,1251,000 sq (2,590 km2)
25Grant CountyMilbank5118737,556682 sq (1,766 km2)
26Gregory CountyBurke5318623,9941,016 sq (2,631 km2)
27Haakon CountyPhilip5519141,8721,813 sq (4,696 km2)
28Hamlin CountyHayti5718736,164511 sq (1,323 km2)
29Hand CountyMiller5918733,1451,437 sq (3,722 km2)
30Hanson CountyAlexandria6118733,461435 sq (1,127 km2)
31Harding CountyBuffalo6319091,3112,671 sq (6,918 km2)
32Hughes CountyPierre65188017,765741 sq (1,919 km2)
33Hutchinson CountyOlivet6718627,427813 sq (2,106 km2)
34Hyde CountyHighmore6918731,262861 sq (2,230 km2)
35Jackson CountyKadoka7119142,8061,869 sq (4,841 km2)
36Jerauld CountyWessington Springs7318831,663530 sq (1,373 km2)
37Jones CountyMurdo751916917971 sq (2,515 km2)
38Kingsbury CountyDe Smet7718735,187838 sq (2,170 km2)
39Lake CountyMadison79187311,059563 sq (1,458 km2)
40Lawrence CountyDeadwood81187525,768800 sq (2,072 km2)
41Lincoln CountyCanton83186765,161578 sq (1,497 km2)
42Lyman CountyKennebec8518733,7181,640 sq (4,248 km2)
43Marshall CountyBritton9118854,306839 sq (2,173 km2)
44McCook CountySalem8718735,682575 sq (1,489 km2)
45McPherson CountyLeola8918732,4111,137 sq (2,945 km2)
46Meade CountySturgis93188929,8523,471 sq (8,990 km2)
47Mellette CountyWhite River9519091,9181,307 sq (3,385 km2)
48Miner CountyHoward9718732,298570 sq (1,476 km2)
49Minnehaha CountySioux Falls991862197,214809 sq (2,095 km2)
50Moody CountyFlandreau10118736,336520 sq (1,347 km2)
51Oglala Lakota County 102187513,6722,094 sq (5,423 km2)
52Pennington CountyRapid City1031875109,2222,776 sq (7,190 km2)
53Perkins CountyBison10519092,8352,872 sq (7,438 km2)
54Potter CountyGettysburg10718752,472866 sq (2,243 km2)
55Roberts CountySisseton109188310,2801,101 sq (2,852 km2)
56Sanborn CountyWoonsocket11118832,330569 sq (1,474 km2)
57Spink CountyRedfield11518736,3611,504 sq (3,895 km2)
58Stanley CountyFort Pierre11718732,9801,443 sq (3,737 km2)
59Sully CountyOnida11918731,4461,007 sq (2,608 km2)
60Todd County 12119099,3191,388 sq (3,595 km2)
61Tripp CountyWinner12318735,6241,614 sq (4,180 km2)
62Turner CountyParker12518718,673617 sq (1,598 km2)
63Union CountyElk Point127186216,811460 sq (1,191 km2)
64Walworth CountySelby12918735,315708 sq (1,834 km2)
65Yankton CountyYankton135186223,310522 sq (1,352 km2)
66Ziebach CountyDupree13719112,4131,962 sq (5,082 km2)

South Dakota Cities by County and Population

RankCityPopuation 2020 CensusCounty
1Sioux Falls 192,517Minnehaha Lincoln
2Rapid City 74,703Pennington
3Aberdeen 28,495Brown
4Brookings 23,377Brookings
5Watertown 22,655Codington
6Mitchell 15,660Davison
7Yankton 15,411Yankton
8Huron 14,263Beadle
9Pierre ‡14,091Hughes
11Box Elder11,746"Pennington Meade
12Vermillion 11,695Clay
14Sturgis 7,020Meade
16Madison 6,191Lake
17Belle Fourche 5,617Butte
19Dell Rapids3,996Minnehaha
20Milbank 3,544Grant