The congregation of Oak Grove Church can trace its beginnings to a small church in the neighboring village of Union in 1844. The American Baptist Home Mission Society sent Rev. Jeremiah Murphy to Rock County to organize the church and successfully recruited thirteen charter members.

For a number of years, the Union Baptist Church served the farm community in northern Rock County as well as the village of Union and “The Grove”. In the mid-1850’s, “The Grove” experienced rapid growth and was platted as the Village of Evansville while growth in the Village of Union lagged behind.

In 1856, nine members of the Union congregation living in or near Evansville asked permission to withdraw and form their own church.

In 1866, land was purchased at the present location to build a new church building. In 1903, the cornerstone for a new building was laid, the current building was dedicated on June 12, 1904 and First Baptist Church of Evansville was formed.

In 1999, the congregation at First Baptist Church left the American Baptist denomination with a firm commitment to the pure teaching of God’s Holy Word.

In 2006, the name was officially changed to Oak Grove Church.

“They will be called oaks of righteousness, a planting of the Lord for the display of His splendor.” Isaiah 61:3