May 22, 2026, Lancaster ISD/Lancaster, TX -- The development of the Lancaster ISD academic calendar is a collaborative process managed by the Lancaster ISD Instructional Services team. The district calendar committee, consisting of members who served on the District Improvement Committee as well as district Lancaster ISD teachers, staff, parents and community members, provide valuable input and suggestions to develop the calendar before approval by the Lancaster ISD Board of Trustees.
Please click here to download the 26-27 academic calendar.
