Colorado school district calendars 2026-27
First and last day, breaks and holidays, each linked to the district's own calendar.
Independent site, not affiliated with any school district. School Year Dates is an independent publisher. We are not affiliated with, endorsed by or operated by any school district listed here or any other school district.
What the Colorado calendars show
This page lists 4 Colorado school districts with a calendar we have read from the district's own site. The earliest first day is (Aurora Joint District No. 28 of the counties of Adams and A) and the latest is (School District 27J); the median is .
Last days of school fall between and , with a median of . In the week of Thanksgiving, 4 districts with 5 weekdays off.
0 calendars are marked approved and 0 calendars are marked tentative in the sources; tentative calendars can still change. Every district row links to a page with the month-by-month calendar, the break lengths and the source link with the day we read it.
The dates for Aurora Joint District No. 28 of the counties of Adams and A begin with and end with . Winter Vacation is its longest listed break, covering 12 days between and . There are 6 breaks in this calendar. Counting weekdays between those endpoints and removing the listed breaks, holidays and teacher workdays leaves 175 potential weekdays. The first week contains 2 potential weekdays and the final week contains 5. These counts use only the exceptions listed here; missing closures can reduce them. They are not verified attendance totals.
The dates for St. Vrain Valley School District No. Re1J begin with and end with . Winter Break is its longest listed break, covering 12 days between and . There are 3 breaks in this calendar. Counting weekdays between those endpoints and removing the listed breaks, holidays and teacher workdays leaves 176 potential weekdays. The first week contains 4 potential weekdays and the final week contains 4. These counts use only the exceptions listed here; missing closures can reduce them. They are not verified attendance totals.
Boulder Valley School District No. Re2 opens on and finishes on . Its calendar lists 3 breaks; the longest is Spring break - no school, from to , lasting 5 calendar days. Counting weekdays between those endpoints and removing the listed breaks, holidays and teacher workdays leaves 182 potential weekdays. The first week contains 3 potential weekdays and the final week contains 4. These counts use only the exceptions listed here; missing closures can reduce them. They are not verified attendance totals.
School District 27J opens on and finishes on . Its calendar lists 3 breaks; the longest is Winter Break, from to , lasting 12 calendar days. Counting weekdays between those endpoints and removing the listed breaks, holidays and teacher workdays leaves 185 potential weekdays. The first week contains 2 potential weekdays and the final week contains 4. These counts use only the exceptions listed here; missing closures can reduce them. They are not verified attendance totals.
All Colorado districts, largest first
| District | Students | First day | Last day | Winter break | Spring break | Status |
|---|---|---|---|---|---|---|
| Aurora Joint District No. 28 of the counties of Adams and A | 38702 | to | to | Status | ||
| St. Vrain Valley School District No. Re1J | 31607 | to | to | Status | ||
| Boulder Valley School District No. Re2 | 27988 | to | Status | |||
| School District 27J | 24046 | to | to | Status |