South Dakota's At-Large Congressional District
South Dakota · SD-01 · At-large
South Dakota's At-Large Congressional District is the statewide seat covering all of South Dakota, represented in Congress by Dusty Johnson (Republican). It is home to roughly 899,194 people, with a median age of 37.7. The population is about 80% White. The median household income is $72,559, and 31% of adults 25 and older hold a bachelor’s degree or higher. In the 2024 presidential election it voted solidly Republican (R+29).
Representative
Current U.S. House member (source: house.gov).
Geography
South Dakota elects a single at-large representative. Zoom out to explore other states.
Covering 76,952 square miles, SD-01 is the 4th-largest of the 435 congressional districts by land area. With about 12 residents per square mile, it is a predominantly rural district. Its shape is very compact: the district's Polsby-Popper score of 0.59 ranks 8th of 435 nationally, where 1st is the most compact.
Presidential results
In the 2024 presidential election, 34% of SD-01 voters backed Kamala Harris and 63% Donald Trump — a R+29 margin. That is a 3.0-point shift toward the Republicans from 2020, when the district voted R+26.
Two-party presidential vote by district (source: The Downballot).
Who lives here
The median resident of the district is 37.7 years old; 24.4% of residents are under 18 and 17.6% are 65 or older. About 3.9% of residents were born outside the United States, and 6.7% speak a language other than English at home.
U.S. Census Bureau, American Community Survey (5-year estimates).
Economy & education
At $72,559, the district's median household income ranks 257th of 435 districts nationwide. The typical owner-occupied home is worth $236,825, and the median rent is $912 a month. 12% of residents live below the poverty line, and workers average a 18.9-minute commute (9.3% work from home).
U.S. Census Bureau, American Community Survey (5-year estimates).