
Representative Colin M. Wellenkamp, a Republican, represents St. Charles County (District 105) in the Missouri House of Representatives. He was elected to his first term in November of 2024. Wellenkamp has worked as an environmental scientist and is currently an adjunct professor at Saint Louis University and Washington University, and is the executive director of the Mississippi River Cities & Towns Initiative – an association of 105 cities along the ten-state length of the Mississippi River. He served on the St. Charles Borromeo School Board and the Military Ascent Commission. He is married and has two children.