Tim Lohmar was born, raised, and still resides in St. Charles County, Missouri. After graduating from St. Charles West High School, he received his undergraduate and Juris doctorate degrees from the University of Missouri. Following law school, Lohmar began the private practice of law in St. Charles while also serving as an Assistant Prosecuting Attorney for the City of O’Fallon, Missouri. Later, he served as the first-ever Municipal Judge for the St. Charles County Municipal Court. Then, in 2010, he was elected as an associate circuit judge for the State of Missouri. Finally, in 2012, St. Charles County Executive appointed him to serve as the St. Charles County Prosecuting Attorney - a position he was reelected for in both 2014 and 2018.