St. Mary's County Public Schools Calendar 2026-2027
Leonardtown, Maryland · from the district's official calendar, checked Oct 2, 2026
The 2027-2028 calendar is already published: see the 2027–28 dates.
First day of school
Wednesday, August 26, 2026
Last day of school
Wednesday, June 16, 2027
School days
183Matches the 183 days the district prints.
Weekdays off
28Longest break: Winter break (10 school days)
Next day off
Indigenous Peoples' Day / Columbus DayOct 12
- Thanksgiving break: Nov 25–27
- Winter break: Dec 21 – Jan 1
- Spring Break - No School for Students and 10-11 Month Employees: Mar 22–29
- 11 early release days
- 3 possible make-up days
Days off and schedule changes
Every day that changes something for families. Where it says “the district calls it”, that is the district's own wording.
- Sep 7 · MonNo school · Labor DayThe district calls it: “Holiday – Labor Day - All Schools and Offices Closed”
- Sep 16 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Collaborative Planning/Professional Responsibilities”
- Sep 25 · FriNo schoolThe district calls it: “Professional Day - No School for Students - Staff Development (School)”
- Oct 12 · MonNo school · Indigenous Peoples' Day / Columbus DayThe district calls it: “Professional Day - No School for Students - Parent/Teacher Conferences and Collaborative Planning/Professional Responsibilities”
- Oct 28 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Professional Responsibilities”
- Nov 3 · TueNo schoolThe district calls it: “General Election Day - No School for Students and 10-11 Month Employees”
- Nov 11 · WedNo school · Veterans DayThe district calls it: “Holiday – Veteran's Day – All Schools and Offices Closed”
- Nov 18 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Collaborative Planning/Professional Responsibilities”
- Nov 25 · WedNo schoolThe district calls it: “Thanksgiving Break - No School for Students and 10-11 Month Employees”
- Nov 26–27 · ThuNo school · Thanksgiving breakThe district calls it: “Holiday - Thanksgiving - All Schools and Offices Closed”
- Dec 16 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Collaborative Planning/Professional Responsibilities”
- Dec 21–24 · MonNo schoolThe district calls it: “Winter Break – No School for Students and 10-11 Month Employees”
- Dec 25 · FriNo school · Christmas DayThe district calls it: “Holiday – Winter Break – All Schools and Offices Closed”
- Dec 28–31 · MonNo schoolThe district calls it: “Winter Break – No School for Students and 10-11 Month Employees”
- Jan 1 · FriNo school · New Year's DayThe district calls it: “Holiday – Winter Break – All Schools and Offices Closed”
- Jan 18 · MonNo school · Martin Luther King Jr. DayThe district calls it: “Holiday - Martin Luther King Jr. Day - All Schools and Offices Closed”
- Jan 20 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Professional Responsibilities”
- Jan 29 · FriNo schoolThe district calls it: “Professional Day – No School for Students – Staff Development (System) (Possible Make-Up Day)”Possible make-up day
- Feb 15 · MonNo school · Presidents' DayThe district calls it: “Holiday - Presidents' Day - All Schools and Offices Closed (Possible Make-Up Day)”Possible make-up day
- Feb 17 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Collaborative Planning/Professional Responsibilities”
- Mar 10 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Staff Development (School)”
- Mar 22–25 · MonNo schoolThe district calls it: “Spring Break - No School for Students and 10-11 Month Employees”
- Mar 26 · FriNo schoolThe district calls it: “Holiday - All Schools and Offices Closed”
- Mar 29 · MonNo schoolThe district calls it: “Spring Break - No School for Students and 10-11 Month Employees (Possible Make-Up Day)”Possible make-up day
- Apr 7 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Professional Responsibilities”
- May 26 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Collaborative Planning/Professional Responsibilities”
- May 31 · MonNo school · Memorial DayThe district calls it: “Holiday - Memorial Day - All Schools and Offices Closed”
- Jun 15 · TueEarly releaseThe district calls it: “Two Hour Early Dismissal – Last Day for Prekindergarten Students Professional Responsibilities”
- Jun 16 · WedEarly releaseThe district calls it: “Two Hour Early Dismissal – Last Day for Students Grades K-12, End of 4th Marking Period (47 days) and 2nd Semester (94 days), (including 3 inclement weather days)”
The 2026-2027 school year at a glance
Jul 2026
Aug 2026 4 school days
Sep 2026 20 school days
Oct 2026 21 school days
Nov 2026 16 school days
Dec 2026 14 school days
Jan 2027 18 school days
Feb 2027 19 school days
Mar 2027 17 school days
Apr 2027 22 school days
May 2027 20 school days
Jun 2027 12 school days
- 1 School day
- 1 Learning from home
- 1 No school
- 1 Weekend / outside the school year
- 1 First / last day
- 1 Early release
- 1 Late start
- 1 Possible make-up day
- 1 Only some grades (pick a grade)
Other dates
Dates that do not change the school day: grading periods, report cards, orientations.
- Aug 26First day of schoolThe district calls it: “Schools Open for Students”
- Oct 30Grading period endsThe district calls it: “End of 1st Marking period (45 days)”
- Nov 12Report cardsThe district calls it: “Report Card Distribution”
- Jan 22Grading period endsThe district calls it: “End of 2nd Marking Period (44 days) and 1st Semester (89 days)”
- Feb 2Report cardsThe district calls it: “Report Card Distribution”
- Apr 9Grading period endsThe district calls it: “End of 3rd Marking Period (47 days)”
- Apr 20Report cardsThe district calls it: “Report Card Distribution”
- Jun 2Graduation · grade 12 onlyThe district calls it: “Commencement - Chopticon High School”
- Jun 3Graduation · grade 12 onlyThe district calls it: “Commencement - Leonardtown High School”
- Jun 4Graduation · grade 12 onlyThe district calls it: “Commencement - Great Mills High School”
- Jun 15Note · Pre-K onlyThe district calls it: “Last Day for Prekindergarten Students”
- Jun 16Last day of schoolThe district calls it: “Last Day for Students Grades K-12”
- Jun 16Grading period endsThe district calls it: “End of 4th Marking Period (47 days)”
Where these dates come from
Source: St. Mary's County Public Schools official 2026-2027 calendar, retrieved Oct 2, 2026.
Checked Oct 2, 2026: our count of school days matches the 183 days the district prints (the sum of its grading periods). How we check.
Approved by the school board on Feb 3, 2026.
Districts sometimes revise their calendars, and make-up days depend on weather. Confirm with St. Mary's County Public Schools before booking travel.
Nearby districts
- Wicomico County Public SchoolsFirst day Sep 1, 2026 · last day Jun 11, 2027
- Cecil County Public SchoolsFirst day Aug 31, 2026 · last day Jun 11, 2027
- Calvert County Public SchoolsFirst day Aug 25, 2026 · last day Jun 10, 2027
- Washington County Public SchoolsFirst day Aug 25, 2026 · last day Jun 8, 2027
- Carroll County Public SchoolsFirst day Aug 31, 2026 · last day Jun 11, 2027
- Charles County Public SchoolsFirst day Aug 24, 2026 · last day Jun 9, 2027
St. Mary's County Public Schools 2026-2027 · checked Oct 2, 2026 · confirm with the district · source: https://www.smcps.org/fs/resource-manager/view/06b814f7-eb75-4861-a269-277a93ced704