Pen Bay Christian School was founded in 1975 as a ministry of Littlefield Memorial Baptist Church. At that time, it started with seven preschoolers and was called Littlefield Christian Nursery School. The school progressed through the years. In 1978 there were two preschool sessions with 16 children in each class.

In the fall of 1981, the first kindergarten class was formed with grades 1, 2 and 3 added in the ensuing years. In the mid 1990’s, Littlefield Memorial Baptist Church voted to construct the Henderson Memorial Wing to house the school. In November of 1996 the wing was completed and the name of the school was changed to Pen Bay Christian School.   At the present time, the school offers preschool through grade nine with plans to continue through 12th grade in the near future.