In 1978, three Lutheran churches in Simi Valley (Trinity – LCMS, Our Savior – ELCA, and Our Redeemer – ALC) had a dream to start a Christian School in Simi Valley. Each congregation provided three representatives and their pastors as a steering committee. They met monthly, did research, looked at needs and demographics, and sought resources and consultants. With passion, commitment and the congregations’ hard work, their dream of a school became a reality in September 1979 and initially, Good Shepherd Lutheran School opened with grades K – 2. Over the years the school has grown, reaching up to grades K-9 in the 1985-86 school year. The ten-classroom school operated between all 3 church campuses.
Two of the three church bodies combined in 2008 resulting in the collaboration between Trinity Lutheran Church (LCMS) and, a newly named, Shepherd of the Valley Lutheran Church (ELCA). GSLS remained a collaboration between these two churches until December 2016.
Good Shepherd Lutheran School is now an independent outreach of Trinity Lutheran Church. Good Shepherd Lutheran School currently has Kindergarten through Eighth grade classes all located on the Trinity Lutheran Church campus.