Adult Sunday School
- Builders most members were born in the 1940s and 1950s
- Christian Seek and Serve 1920s, 1930s and 1940s
- Christians in Action 1940s, 1950s and 1960s
- ComJoinUs 1930s and 1940s
- Fellowship Sunday School Class Intergenerational
- Journey 1970s and 1980s
- Pathfinders 1950s and 1960s
- TruthSeekers 1960s and 1970s
- Young Adults
Children's Sunday School
- Crib Roll Birth to age 2
- Fours, Fives and Sixes Ages 4, 5, and 6
- Grades One and Two Grades One & Two
- Grades Six, Seven and Eight Jr. High - Grades Six, Sever & Eight
- Grades Three, Four and Five Grade Three, Four and Five
- MYF (Sunday School) High School Age
- Three & Four Year Olds Ages 3 & 4
- Twos and Threes
Leadership
- Church Board Serves as the leadership and decision making body of the congregation
- Education Commission Develops and administers educational programs within the church
- Fellowship and Service Commission Provides fellowship and service opportunities for members
- Leadership Selection Identifies, affirms and utilizies member's gifts
- Oak Grove Endowment Administers the Oak Grove Endowment Fund
- Outreach Commission Coordinates community and church-wide service opportunities
- Property Commission Oversees the maintenance and upkeep of church facilities
- Spiritual Life Commission Provides for the spiritual and personal needs for members and pastors
- Worship Commission Plans and organizes worship experiences and related activites
Other Groups
Service Groups
- Meat Canning (MCC Relief) Local meat canning for worldwide relief
- Mennonite (MCC) Relief Sale An annual fundraising event for worldwide relief and service
- Mennonite Disaster Service An arm of the Mennonite Church that responds to natural disasters
- Mennonite Women Mennonite Women meet monthly to quilt, knot comforters and fellowship together.
- Orrville Friendship Meals A local opportunity to serve meals in Orrville
Social Groups
- Men's Prayer Breakfast Breakfast, Conversation & Devotions
- Single and Single Again A gathering of singles, usually twice a month, for activities
- Wooster Supper Group Food and fun in Wooster, two times a month.