America, in numbers.
MEMBERS OF CONGRESS · SENATE
Official portrait of Mike Rounds

Mike Rounds

U.S. Senator for South Dakota

RepublicanSenate class 2
Current term
Jan 3, 2021 – Jan 3, 2027
In the Senate since
2015
Official website
rounds.senate.gov ↗
Biography
Biographical Directory of Congress ↗

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Other members from South Dakota

Official portrait of John Thune

John Thune

Republican

Senator · South Dakota

Official portrait of Dusty Johnson

Dusty Johnson

Republican

Representative · SD-AL

Data last updated Oct 21, 2026. America, in numbers is an independent site, not an official government website. Sources and methods