Where is Chelmsford located?

Chelmsford serves students in Chelmsford, Middlesex County, MA.

How many students are enrolled in Chelmsford?

Total enrollment in Chelmsford is 5,130 students.

Suburban

Chelmsford School Calendar 2026-27

Chelmsford, Massachusetts · Middlesex County

Sync Chelmsford's calendar to your phone: no-school days, breaks, holidays and more. $29.99/year. Get started

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Tue, Nov 3

Full Professional Day (No School)

Full staff professional day - no school for students

Wed, Nov 11

Veterans Day

Veterans Day - No School Check the calendar for any schedule changes related to this observance.

Wed, Nov 18

Half Day (Elementary & Middle School Only)

Early release / half day for elementary and middle school students only

Wed, Nov 25

Thanksgiving Recess Early Release

Early release ahead of Thanksgiving recess

Nov 26 - 27

Thanksgiving Recess

Thanksgiving Recess - No School

Thu, Dec 10

Professional Day (Half Day)

Student half day / staff professional development

Full School Calendar 2026-27

26 events

Source

Mon, Aug 31

PD Day

Staff Orientation (No School)

Staff orientation day, no school for students

Tue, Sep 1

Event

First Day of School (Grades 1–9) & Kindergarten Orientation

First day of school for grades 1 through 9 only and kindergarten orientation

Wed, Sep 2

Event

First Day of School (All Students)

First day of school for all students

Fri, Sep 4

Holiday

No School

No school day prior to Labor Day

Mon, Sep 7

Holiday

Labor Day

Labor Day - No School Check the calendar for holiday observance details.

Wed, Sep 23

Early Dismissal

Professional Day (Half Day)

Student half day / staff professional development

Mon, Oct 12

Holiday

Columbus Day

Columbus Day - No School Check the calendar for holiday observance details.

Thu, Oct 22

Early Dismissal

Professional Day (Half Day)

Student half day / staff professional development

Tue, Nov 3

PD Day

Full Professional Day (No School)

Full staff professional day - no school for students

Wed, Nov 11

Holiday

Veterans Day

Veterans Day - No School Check the calendar for any schedule changes related to this observance.

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Data source: official Chelmsford website · How we verify this data

Key Dates — Chelmsford School Calendar

Scheduled breaks include Thanksgiving Recess Early Release (Wed, Nov 25, 2026), Thanksgiving Recess (Thu, Nov 26, 2026 to Fri, Nov 27, 2026), December Recess (Thu, Dec 24, 2026 to Fri, Jan 1, 2027), February Recess (Mon, Feb 15, 2027 to Fri, Feb 19, 2027), April Recess (Mon, Apr 19, 2027 to Fri, Apr 23, 2027).