A mission of two congregations

Our Churches

Our school is operated by two WELS Lutheran churches located in Watertown.

Trinity Ev. Lutheran

Trinity Lutheran Church is a gathering of believers who share the same faith in God’s plan for our salvation: Jesus died for our sins so we receive eternal life in heaven.

We are young and old. We are new in faith and lifelong members. We are Christians united in faith and purpose.

We are a part of the Wisconsin Evangelical Lutheran Synod (WELS) which allows us to support world missions, pastor and teacher training, and other activities that we could not do by ourselves.

We are excited about our mission to share Christ’s love with our community by sponsoring community events like the annual Daddy Daughter Dance and the Watertown WELS Live Nativity.


St. Luke’s Ev. Lutheran

He bought her with his flawless innocent life, and his tortured death on the cross, and his triumphant rising from the dead on Easter. The flock belongs to Him. The glory is His alone!

 We see just some of the obvious outward blessings that Jesus has rained down on us by grace alone. So many of Jesus’ blessings are spiritual – invisible – yet obvious through the eyes of faith. We cannot thank Him enough for his countless kindnesses. We pray that Jesus will make us faithful stewards – using all we have and all that we are to glorify Him.

God bless us everyone – by grace alone, faith alone, Scripture alone!


Trinity-St. Luke Lutheran School (TSL) is operated by Trinity Evangelical Lutheran Church and St. Luke’s Evangelical Lutheran Church. Both churches are members of the Wisconsin Evangelical Lutheran Synod (WELS).

 TSL is a mission and ministry arm of both congregations and is supported in part by congregation members. In addition, each congregation elects three men to serve on the Joint Board of Trinity-St. Luke’s Lutheran School. The Joint Board is responsible for the policies and procedures of the school. The pastors of both congregations and the principal act as advisory members to the Joint Board. The principal and the assistant principals of each building carry out the administration of the school.

Trinity Lutheran Church is located at:
605 South 4th Street
Watertown, WI 53094
You can learn more about Trinity Lutheran Church at by clicking here.

St. Luke’s Lutheran Church is located at:
303 Clark Street
Watertown, WI 53094
You can learn more about St. Luke’s Lutheran Church by clicking here.

Western Avenue Campus
801 South Fifth Street
Watertown, WI 53094
Telephone: 920-261-3615

Clark Street Campus
303 Clark Street
Watertown, WI 53094
Telephone: 920-261-3615

©Trinity-St. Luke's Lutheran School

Designed by Watertown Design