For the 2026–2027 school year, the district serves 9,500 students across 14 schools in Idaho. Classes begin August 24, 2026 and end May 27, 2027, with 180 instructional days planned. All dates listed below are sourced from the district's official publications. Verify with Jefferson Joint School District 251 before scheduling around them.
Visual Calendar
Official Calendar Images
Official calendar scans for Jefferson Joint School District 251. Click any page to open the full-size image.
School Calendar
Interactive Calendar
Jefferson Joint School District 251's 2026–2027 academic calendar — holidays, breaks, and key dates.
Month by Month Calendar
About the District
School Information
Details and contact information for Jefferson Joint School District 251 JJSD251.
Sources and Checks
Where these dates come from
How the 2026–2027 Jefferson Joint School District 251 calendar on this page was compiled and what to re-check before you rely on it.
- ✓District publication. Dates are taken from the calendar Jefferson Joint School District 251 published for 2026–2027, shown as images on this page.
- ✓Official website. Cross-checked against sd251.org.
- ✓Board-approved version is used where the district marks one.
- ✓First and last day match the published calendar.
- ✓Breaks and holidays are listed with their full date ranges.
- ✓Teacher / no-school days are included where the district lists them.
- ✓Changes happen. Districts amend calendars mid-year — confirm with Jefferson Joint School District 251 before booking around a date.
Common Questions
Frequently Asked Questions
Jefferson Joint School District 251 Calendar 2026–2027 — important dates and answers.
The first day of school for Jefferson Joint School District 251 is August 24, 2026.
Spring Break is from March 29–31, 2027 and continues April 1–2, 2027.
Christmas Break runs from December 21–31, 2026 with no school for students.
Winter Break takes place from December 21–31, 2026.
Thanksgiving Break is scheduled for November 23–27, 2026.
The last day of school is May 27, 2027.
Labor Day Holiday (No School) is on September 7, 2026.
Parent Teacher Conferences are scheduled for October 14–15, 2026 and January 27–28, 2027. These are 1-hour early release days.
The 1st Trimester ends on November 12, 2026.
The 3rd Trimester begins on March 1, 2027.
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Recently Updated Calendars
Other Idaho school district calendars — recently added or updated.