Lancaster School District Calendar 2025-2026
The Lancaster School District calendar for the 2025-2026 school year provides all the necessary dates for students, parents, and staff. The calendar includes important information such as employee planning days, school holidays, and recess periods. Here's a detailed overview to help you plan your academic year.
Key Dates
- First Day of School (staggered by grade): August 19, 2025 – August 20, 2025
- Marking Periods (overview): August 19, 2025 – May 29, 2026
- Keystone Exams Window (Algebra I, Biology, Literature): December 3, 2025 – May 22, 2026
- PSSA Testing Window (Grades 3-8 ELA/Math & Grades 4/8 Science / Make Ups): April 20, 2026 – May 8, 2026
- Last Student Day (tentative): May 29, 2026
Note: This calendar page is created based on information from the official website Lancaster School District
Interactive School Calendar
Printable Resources
Looking for a clean, easy-to-read Lancaster School District printable calendar? Our team at pennsylvaniaschools.us has formatted the official 2025-2026 school dates into a high-quality PDF, verified against the latest district updates to ensure 100% accuracy for parents and students.
Lancaster School District Calendar 2025-2026
July 2025
- July 4 – Independence Day Holiday
August 2025
- August 12–14 – All-Staff Meeting & Professional Development
- August 18 – All-Staff Meeting & Professional Development
- August 15 – Flex Day
- August 19 – First Day of School (grades K-6; 7-8 Martin only; & 9)
- August 20 – First Day of School (grades 7-8 at JMS, LMS, RMS & WMS; & 10-12)
- August 29 – Labor Day Recess (office open)
September 2025
- September 1 – Labor Day Holiday
October 2025
- October 13 – Indigenous Peoples Day
- October 23 – First Marking Period Ends
- October 23 – Second Marking Period Begins
- October 24 – Professional Development (Teacher PD)
November 2025
- November 24 – Family-Teacher Conferences (Schools Closed; evening conferences)
- November 25 – Family-Teacher Conferences (Schools Closed)
- November 26–28 – Thanksgiving Holiday
December 2025
- December 3 – Keystone Exams Begin (December window) - Algebra I, Biology, Literature
- December 17 – Keystone Exams End (December window) - Algebra I, Biology, Literature
- December 23 – Early Dismissal
- December 24–26 – Christmas Holiday
- December 29–30 – Winter Break (limited staff)
- December 31–January 2 – New Year's Holiday (spans year)
January 2026
- January 5 – Keystone Exams Begin (January window) - Algebra I, Biology, Literature
- January 16 – Keystone Exams End (January window) - Algebra I, Biology, Literature
- January 12 – Second Marking Period Ends
- January 12 – Third Marking Period Begins
- January 16 – Design & Development Day
- January 19 – Martin Luther King Jr. Day
February 2026
- February 5 – Family-Teacher Conferences (evening; schools in session)
- February 6 – Family-Teacher Conferences (Schools Closed)
- February 16 – Presidents Day Holiday
- February 17 – Professional Development (Teacher PD)
March 2026
- March 19 – Third Marking Period Ends
- March 19 – Fourth Marking Period Begins
- March 20 – Inclement Weather Make-Up Day (offices open)
- March 23 – Conference Professional Development
April 2026
- April 3–6 – Easter Holiday / Spring Break
- April 20 – PSSA - Grades 3-8 ELA Begins
- April 24 – PSSA - Grades 3-8 ELA Ends
- April 27 – PSSA - Grades 3-8 Mathematics Begins
- April 27 – PSSA - Grades 4 & 8 Science Begins
May 2026
- May 1 – PSSA - Grades 3-8 Mathematics Ends
- May 1 – PSSA - Grades 4 & 8 Science Ends
- May 4 – PSSA Make-Up Testing Begins
- May 8 – PSSA Make-Up Testing Ends
- May 11 – Keystone Exams Begin (May window) - Algebra I, Biology, Literature
- May 22 – Keystone Exams End (May window) - Algebra I, Biology, Literature
- May 25 – Memorial Day Holiday
- May 29 – Last Student Day / Fourth Marking Period Ends (tentative)
June 2026
- June 1 – Work Day (teachers)
- June 19 – Juneteenth Holiday
Learn More About Lancaster School District
Get detailed information about Lancaster School District including school listings, district policies, contact information, and more educational resources.
Frequently Asked Questions (FAQ)
First day for most students (K-6, Martin 7-8 cohort, grade 9) is 2025-08-19. Other 7-8 cohorts and grades 10-12 begin 2025-08-20.
The tentative last student day is 2026-05-29.
Early release occurs the second Wednesday of each month, plus December 23, and the last student day (tentative 2026-05-29). Examples: 2025-09-10, 2025-10-08, 2025-11-12.
The calendar shows an Easter holiday / spring break from 2026-04-03 to 2026-04-06.
No. Labor Day holiday is listed for 2025-09-01 (schools not in session).
PSSA windows: Grades 3-8 ELA 2026-04-20 to 2026-04-24; Grades 3-8 Math 2026-04-27 to 2026-05-01; Grades 4 & 8 Science 2026-04-27 to 2026-05-01; Make-ups 2026-05-04 to 2026-05-08.
Keystone windows: 2025-12-03 to 2025-12-17, 2026-01-05 to 2026-01-16, and 2026-05-11 to 2026-05-22 for Algebra I, Biology, and Literature.
Plan Ahead with the Lancaster School District Calendar
Stay organized with the Lancaster School District 2025-2026 calendar. Whether you're a student or a parent, this calendar will help you keep track of important dates such as school holidays, planning days, and breaks. Be sure to bookmark this page for quick access to important updates throughout the school year.