Open search page

Congress.wiki Alpha

Color Theme:

About How Congress Works Support Us Roadmap Privacy Policy Terms of Service

This is not an official government website.

Copyright © 2026 PLEJ LC. All rights reserved.

Mike · Congress.wiki

All Elected Officials

Marion Michael Rounds

Junior Senator of South Dakota

Next election: November 3, 2026

Service History

SenatorR

South Dakota

12 years

2 terms

2015 – 2027

Constituent Services

Pierre District Office

Primary

111 W. Capitol Ave., Suite 210 Pierre, SD 57501

Aberdeen District Office

221 Brown County Highway 19 S, Suite 112 Aberdeen, SD 57401

Rapid City District Office

603 Omaha St., Suite 100 Rapid City, SD 57701

Sioux Falls District Office

320 N. Main Ave., Suite A Sioux Falls, SD 57104

Compare to Your Rep

Compare to Your Representatives

Set your location to see how this official compares to your representatives.

Stats are for the current Congress.