Map of South Dakota Counties

South Dakota is divided into 66 counties. Use the interactive maps below to explore counties and their boundaries. Download free maps or learn more about creating a custom map of South Dakota to visualize your own data.

Create Custom Map of South Dakota Counties
Learn more

Interactive Map of South Dakota Counties

List of Counties (66)

List of 66 counties
#CountyCounty seatYear founded
1Plankinton1881
2Huron1879
3Martin1909
4Tyndall1862
5Brookings1862
6Aberdeen1879
7Chamberlain1875
8Gann Valley1873
9Belle Fourche1883
10Mound City1873
11Lake Andes1862
12Clark1873
13Vermillion1862
14Watertown1877
15McIntosh1909
16Custer1875
17Mitchell1873
18Webster1879
19Clear Lake1862
20Timber Lake1873
21Armour1873
22Ipswich1873
23Hot Springs1883
24Faulkton1873
25Milbank1873
26Burke1862
27Philip1914
28Hayti1873
29Miller1873
30Alexandria1873
31Buffalo1909
32Pierre1880
33Olivet1862
34Highmore1873
35Kadoka1914
36Wessington Springs1883
37Murdo1916
38De Smet1873
39Madison1873
40Deadwood1875
41Canton1867
42Kennebec1873
43Britton1885
44Salem1873
45Leola1873
46Sturgis1889
47White River1909
48Howard1873
49Sioux Falls1862
50Flandreau1873
51Hot Springs1875
52Rapid City1875
53Bison1909
54Gettysburg1875
55Sisseton1883
56Woonsocket1883
57Redfield1873
58Fort Pierre1873
59Onida1873
60Winner1909
61Winner1873
62Parker1871
63Elk Point1862
64Selby1873
65Yankton1862
66Dupree1911

South Dakota Counties: Key Facts

  • Total number of counties: 66
  • Largest county by area: Meade County - 3,471 square miles (8,989 km²)
  • Smallest county by area: Clay County - 504 square miles (1,305 km²)
  • Most populous county: Minnehaha County - 208,639 residents
  • Least populous county: Jones County - 930 residents
  • Major urban centers: Sioux Falls (Minnehaha), Rapid City (Pennington)
  • Time zones: Central Time in eastern counties; Mountain Time in western counties
  • Bordering states: North Dakota, Minnesota, Iowa, Nebraska, Wyoming, Montana

Interesting Facts

  • Counties without an incorporated seat: Todd County and Oglala Lakota County
  • Cultural hubs: Pennington County contains Rapid City and is the gateway to Mount Rushmore and the Badlands
  • Missouri River influence: The river forms parts of several county boundaries and includes major reservoirs

Free Downloads

You can download free blank Map of South Dakota Counties and other maps in high resolution PNG, SVG and PDF formats from the blank maps section of the site: Download Blank Map of South Dakota Counties

Custom Map Features

This map supports labels.

This map supports surrounding areas, roads, rivers and cities. New

This map is divided into 66 counties.

Updates

Jan 12, 2026:

  • Improved map quality
  • Added support for surrounding areas and lakes

Aug 26, 2024:

  • Added map of South Dakota Counties

Frequently Asked Questions

South Dakota has 66 counties.

The largest is Meade County at 3,471 square miles, while the smallest is Clay County at 504 square miles.

Minnehaha County is the most populous with 208,639 residents, and Jones County is the least populous with 930 residents.

Key cities include Sioux Falls, Rapid City, Aberdeen, Brookings, and Watertown.

Eastern counties are in Central Time, while western counties are in Mountain Time.

You can use Ultimaps to create custom maps of South Dakota. Color-code counties, place pins, customize the look, and export to PNG, PDF, or SVG.