101st General Assembly, 1st Regular Session
Representative John Wiemann

John Wiemann

District 103
Speaker Pro Tem

Years Served:
Counties:St. Charles

Capitol Address

Address:MO House of Representatives
201 West Capitol Avenue
Room 301
Jefferson City MO 65101 
Legislator Assistant:Kari Hoelscher 


Representative John Wiemann, a Republican, represents part of St. Charles County (District 103) in the Missouri House of Representatives. He was elected to his first two-year term in November 2014 and was re-elected in 2016, 2018, and 2020.

Born in St. Louis and raised in St. James, Missouri, Wiemann is a graduate of University of Missouri – Columbia, with a bachelor’s in business administration and a master’s in health administration.

He resides in O’Fallon with his wife, Yvette and two sons, Blake & Clayton. He is President and CEO of Midwest Physician Insurance Advisors and is a licensed insurance broker.

Wiemann is a member of O’Fallon and Cottleville Weldon Spring Chambers of Commerce, National Federation of Independent Businesses (NFIB) St. Charles County Lions Club, Assumption Catholic Church, Knights of Columbus, NRA, and Lewis & Clark Pachyderm club. Wiemann serves on the board of directors for the Junior GAC Youth Football league, State Legislative Leaders Foundation and the board of Trustees for Missouri State Employees’ Retirement System.

Wiemann was elected to serve as Speaker Pro Tem for the 100th and 101st General Assembly.