South Dakota

GIS Map covers 25 cities and towns across South Dakota, home to roughly 499,541 residents combined. Mount Rushmore State features Badlands, Black Hills, and wide-open Great Plains. The most populous community is Sioux Falls, with about 201,469 residents in Minnehaha County, and it has an interactive street, satellite and topographic map. Rapid City (77,946) and Aberdeen (28,189) follow. The state capital, Pierre, sits in Hughes County.

We publish boundary maps and Census demographics for 66 counties in South Dakota. Minnehaha County is the most populous, with about 203,289 residents. The highest median household income belongs to Lincoln County at $99,166. Home values peak in Custer County, where the median owner-occupied home is worth about $372,100. By land area, Meade County is the largest at roughly 3,471 square miles. The youngest population, with a median age of 22.8, is found in Buffalo County. Among mapped cities with at least 10,000 residents, Brandon reports the highest median household income at $110,806. All figures come from the U.S. Census Bureau's American Community Survey 2020-2024 five-year estimates.

The terrain in South Dakota changes noticeably from place to place. Custer is the highest at about 5,312 feet above sea level, while Yankton is the lowest at about 1,208 feet. The state is split between time zones: Central (13 cities) and Mountain (12 cities). According to the USDA U.S. General Soil Map, Mollisols are the dominant soil order beneath 16 of the mapped city centers. Federal records list 5 government-owned and 62 leased properties in these cities, the most in Sioux Falls. City maps let you switch on FEMA flood zones, USGS contours and land cover layers.

There are 37 ZIP code tabulation areas in South Dakota with dedicated pages. The most populated one has about 51,907 residents. The runner-up counts roughly 45,795 people. The densest packs about 7,160 people per square mile. Every page includes drawing and measuring tools plus a click-anywhere inspector that reports the county, ZIP, census tract, school district, flood zone and elevation of any point.