⚠Unofficial calendar. Always confirm with your district before making plans. Some dates are estimated from nearby districts or past years — those are marked below.
Collinsville
Oklahoma · 3,124 students · 2026–27 school year
Showing the 2026–27 school year. Past years & forecasts are in our API.
Thanksgiving
Nov 26 – Nov 27
Winter
Dec 23 – Dec 31
Spring
Apr 1 – Apr 2
Last day
May 28
Breaks & no-school days
Day off
Starts
Ends
Institute Day - No School
—
Institute Day - No School
—
Labor Day - No School
—
Institute Day - No School
—
Columbus Day - No School
—
Parent Teacher Conferences - No School
—
Parent Teacher Conferences - No School
—
Veteran'S Day Holiday - No School
—
Thanksgiving Break
Winter Break
New Years Day - No School
—
Ml King Day - No School
—
President'S Day - No School
—
Casimir Pulaski Day - No School
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Spring Break
Memorial Day
—
Institute Day - No School
—
School dayDay offHalf dayEstimated — not yet confirmed by the district