River of Life, Madison's Assembly of God church, will be celebrating 80 years on Sunday.
The church's founding dates back to 1933.
"It started in a tent where the junior high is now," said the Rev. Dan Harwell. "Assembly of God was born out of that meeting."
In the 1930s, week-long services were held in the tent. To commemorate that beginning, a tent will be set up at River of Life Sunday for the anniversary celebration.
The anniversary celebration takes place at 10 a.m. Assembly of God District Superintendent Steve Schaible will be the guest speaker at Sunday's service.
A potluck meal will follow with a ladder ball tournament and kids' games in the afternoon.
The local church took on the name River of Life five years ago. Harwell is one of four pastors for River of Life. Also leading the church are Mark Nelson, Jeff Reuter, Clay Leighton.
For the past three years, River of Life has organized Handfuls on Purpose, a once-a-month food distribution for needy families in town.
"We're feeding 96 families per month," Harwell said.
"It's a great way to serve the community and help meet that need. You don't realize the need in the community until you provide a service."
The food distribution program takes place the third Thursday of each month. The church purchases the food through Feeding South Dakota.
Former church pastors have been invited to attend the celebration. Past members of the congregation are also invited.
The church currently has 83 members. Services are held every Sunday at 10 a.m. with a prayer service at 6 p.m. on Sunday and midweek family service at 7 p.m. on Wednesday. No prayer service is scheduled for this Sunday because of the anniversary celebration.