John H. Mix was raised in a small farming community in central Illinois. In 1990, he and his wife accepted an invitation from a friend to attend a Baptist church in Dunlap, Illinois. As a result of that invitation, he accepted Christ as his Savior, and he and his wife were baptized.
In June 1997, he surrendered to full-time ministry. He served as Youth Pastor at Northside Baptist Church of Sandwich, Illinois (1997-1998), Youth and Music Pastor at Hillcrest Baptist Church of El Paso, Texas (1999-2003), Associate Pastor at Roswell Baptist Church of Roswell, New Mexico (2003-2004), and Associate Pastor at Crossroads Baptist Church of Peoria, Illinois (2010-2011). From 2004 to 2010, he served as the Pastor of Freedom Baptist Church in North Little Rock, Arkansas. There he took a struggling mission work through organization as a church and a move to a new facility.
On September 2, 2012, Pastor Mix took leadership in the Senior Pastor role at First Baptist Church of Kingstowne.
Pastor Mix has Bachelors Degree in Pastoral Theology from Anchor Theological Seminary (McAllen, Texas), and a Masters in Biblical Counseling from Andersonville Theological Seminary (Camilla, Georgia). He was ordained by Hillcrest Baptist Church of El Paso, Texas.
Pastor Mix and his wife Sara have four sons - Joshua, Samuel, Levi, and Benjamin.