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.

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Interactive Map of South Dakota Counties

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. 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.