Paul Gruner is a native Daytonian and grew up in Kettering, graduating from Fairmont West High School. His grandfather, Paul R. Gruner, owned and operated the Greater Dayton Gazette, the German newspaper in Dayton, from 1914 to 1947. His father, Herbert Gruner, was an engineer at Delco Products for 42 years.
Paul and his wife Kathi live in Miami Township and attend Faith Lutheran Church in Belmont. Kathi is a Longaberger Sales Consultant and has been an active community volunteer, including Girl Scouts and TWIGS. They have two grown children, Melissa Lavender, who is an archaeologist with Gray & Pape, Inc. in Cincinnati, and William Gruner, who is a micro-biologist with the Henry M. Jackson Foundation for the Advancement of Military Medicine at Wright-Patterson Air Force Base. Paul is active in local activities including as a Board Member at We Care Arts.
Paul is a registered Professional Engineer and Professional Surveyor and has a Bachelor of Science in Civil Engineering degree and a Master of Science degree from the University of Cincinnati. He worked in the Montgomery County Engineer's Office for 6 years before working in consulting engineering for 30 years at Woolpert, Inc. and Gresham, Smith and Partners. He returned to the Montgomery County Engineer's Office in February of 2010 as Chief Deputy Engineer and was appointed County Engineer in July of 2011 following the retirement of Joseph Litvin.