Founded on February 1, 1960, by Pastor and Mrs. Elmer Bosserman of Trinity Lutheran Church, the school has grown from the original kindergarten and first grade classrooms into its present-day campus.

Affiliated with the Evangelical Lutheran Church in America, TLS operates under a Board of Trustees and a Head of School.

The Board of Trustees, composed of up to eleven members from the school community, active members of Trinity Lutheran Church, and the community at large, is responsible for the direction of the school by establishing policies, creating a long range plan, and maintaining TLS's mission.

The Head of School’s responsibilities include supervising daily operations, implementing policies, and upholding TLS’s academic standards.

Trinity Lutheran School is a non-profit, tax-exempt organization, which admits academically-qualified students without regard to gender, race, color, religion, and national or ethnic origin.