Mike Rounds is the Republican U.S. Senator from South Dakota, in office since 2015.
Current term began January 3, 2021. In the Senate since January 6, 2015.
Committee assignments
- Senate Committee on Appropriations
- Senate Committee on Armed Services
- Senate Committee on Banking, Housing, and Urban Affairs
- Senate Committee on Indian Affairs
- Senate Select Committee on Intelligence
- Commission on Security and Cooperation in Europe
Committee work shapes much of what happens in the Senate, from hearings to shaping bills before they reach the floor.
Term and next election
Mike Rounds holds a Class 2 seat in the United States Senate. Senators serve six-year terms, and the two seats in each state sit in different classes, so they are not up for election in the same year. This seat is next on the ballot in 2026, when voters across South Dakota choose who fills it.
On the ballot November 3, 2026
Mike Rounds is a candidate for this seat. These candidates are on the ballot:
- Mike Rounds, Republican Incumbent
- Brian L Bengs, Independent
Source: South Dakota Secretary of State, 2026 general election candidate list, checked September 26, 2026. See all 35 Senate races.
South Dakota
Mike Rounds is one of two U.S. Senators for South Dakota, who represent the whole state rather than a single district. For the U.S. House delegation, see the South Dakota congressional districts. To find your own House representative, use the home page lookup.
Washington office: 716 Hart Senate Office Building Washington DC 20510
Frequently asked questions
When is Mike Rounds next up for election?
This seat is a Class 2 Senate seat, next up for election in 2026. Every voter in South Dakota takes part in that race.
What committees does Mike Rounds serve on?
Mike Rounds serves on the Senate Committee on Appropriations, Senate Committee on Armed Services, Senate Committee on Banking, Housing, and Urban Affairs, Senate Committee on Indian Affairs, Senate Select Committee on Intelligence, Commission on Security and Cooperation in Europe.
How do I contact Mike Rounds?
You can reach the office of Mike Rounds by phone at 202-224-5842 or through the official U.S. Senate website. The Washington office is at 716 Hart Senate Office Building Washington DC 20510.
Related on this site
- South Dakota congressional districts
- All 100 U.S. senators
- 2026 Senate elections
- What does a U.S. senator do?
- How to find your U.S. senators
Last updated July 10, 2026.
Data last checked September 26, 2026.