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Tolleson Union High School District (4288) — District Profile & Schools

TOLLESON, Arizona · Maricopa County

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Key Dates — Tolleson Union High School District (4288) School Calendar

The first day of school in Tolleson Union High School District (4288) is Mon, Aug 3, 2026, according to the district's published calendar. Scheduled breaks include Fall Break (Mon, Oct 5, 2026 to Fri, Oct 9, 2026), Thanksgiving Break (Mon, Nov 23, 2026 to Fri, Nov 27, 2026), Winter Break (Mon, Dec 21, 2026 to Fri, Jan 1, 2027), Spring Break (Mon, Mar 15, 2027 to Fri, Mar 19, 2027), Spring Recess (Fri, Mar 26, 2027), Testing Break (Fri, Apr 23, 2027).

First day of school
Mon, Aug 3, 2026
Fall Break
Mon, Oct 5, 2026 to Fri, Oct 9, 2026
Thanksgiving Break
Mon, Nov 23, 2026 to Fri, Nov 27, 2026
Winter Break
Mon, Dec 21, 2026 to Fri, Jan 1, 2027
Spring Break
Mon, Mar 15, 2027 to Fri, Mar 19, 2027
Spring Recess
Fri, Mar 26, 2027
Testing Break
Fri, Apr 23, 2027
Labor Day Holiday
Mon, Sep 7, 2026
Indigenous People's Day
Mon, Oct 12, 2026
Election Day
Tue, Nov 3, 2026
Veterans Day Holiday
Wed, Nov 11, 2026
MLK/Civil Rights Day Holiday
Mon, Jan 18, 2027
President's Day Holiday
Mon, Feb 15, 2027
Spring Holiday
Fri, Apr 2, 2027
13,665
Students
8
Schools
0 elem · 0 mid · 8 high
22.4:1
Student-Teacher
611 teachers
9 - 12
Grades

Quick Facts

1,708
Avg. School Size
1,348
Total Staff

Tolleson Union High School District (4288) Calendar

29 events

Mon, Aug 3

Event

First Day of School for All Students

Review the school calendar for the full first day schedule.

Aug 4 - 7

Event

Freshman Focus

Check the program notice for meeting times and participation details.

Mon, Sep 7

Holiday

Labor Day Holiday

No School

Fri, Sep 25

Event

Sandra Day O'Connor Civics Day

Wed, Sep 30

PD Day

All Staff In-Service

No School

Fri, Oct 2

Event

End of 1st Quarter

Oct 5 - 9

Break

Fall Break

No School

Mon, Oct 12

Holiday

Indigenous People's Day

Banks, government offices, and schools may be closed.

Tue, Nov 3

Holiday

Election Day

No School

Wed, Nov 11

Holiday

Veterans Day Holiday

No School

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Data source: official Tolleson Union High School District (4288) website · Last verified May 20, 2026 · How we verify this data

Contact

Address
9801 W VAN BUREN ST
TOLLESON, AZ 85353
Phone
(623)478-4000

Staff & Students

Teachers (FTE)
611
Total Staff
1,348
Data Source
NCES Common Core of Data
School Year 2023-24

Frequently Asked Questions about Tolleson Union High School District (4288)

The first day of school in Tolleson Union High School District (4288) is Mon, Aug 3, 2026, according to the district's published calendar.

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