Research · High schools - Arizona · October 2026

How Many High Schools Are in Arizona? 831 Public and 103 Private

Name: How Many High Schools Are in Arizona? 831 Public and 103 Private
Creator: Test Prep Gurus (High School Reach)
License: https://creativecommons.org/licenses/by/4.0/

As of October 2026: Arizona has 934 high schools: 831 public and 103 private. The largest is Hamilton High School in Chandler, with 3,444 students in grades 9 through 12.

The table lists the 15 largest public high schools in Arizona by the number of students in grades 9 through 12.

Analysis: Test Prep Gurus (High School Reach, highschoolreach.com), October 2026. Figures and the table may be quoted with attribution to Test Prep Gurus.

The findings, in plain English

Arizona has 934 high schools. 831 are public and 103 are private. The 578 public high schools that report enrollment hold 340,961 students in grades 9 through 12 between them. The private count is a floor, because the federal private school survey is voluntary and a school can skip it.

Hamilton High School is the largest public high school in Arizona. It enrolls 3,444 students in grades 9 through 12 in Chandler. The 15th largest school on the table, Tolleson Union High School in Tolleson, enrolls 2,648. None of the 15 largest are charter schools.

The largest private high school in Arizona is Salpointe Catholic High School. It enrolls 1,253 students in Tucson. That is smaller than every public school on the table above. Private schools report total enrollment to the federal survey, so a school that also teaches younger grades counts those students too. Only schools whose lowest grade is 9 are listed here, so each one is a high school.

The 15 largest public high schools in Arizona

Ranked by the number of students in grades 9 through 12.

High school	City	Students in grades 9-12	Charter
Hamilton High School	Chandler	3,444	No
Mountain View High School	Mesa	3,421	No
Red Mountain High School	Mesa	3,379	No
Mesa High School	Mesa	3,233	No
Chandler High School	Chandler	3,179	No
Westwood High School	Mesa	3,135	No
Highland High School	Gilbert	2,992	No
Tucson Magnet High School	Tucson	2,938	No
Trevor Browne High School	Phoenix	2,850	No
Mountain Ridge High School	Glendale	2,823	No
West Point High School	Avondale	2,782	No
Desert Vista High School	Phoenix	2,761	No
San Luis High School	San Luis	2,682	No
Sandra Day O'Connor High School	Glendale	2,658	No
Tolleson Union High School	Tolleson	2,648	No

NCES Common Core of Data, grade 9-12 enrollment. Virtual schools are excluded. Absence from this list means a school is not among the largest, nothing more.

The largest private high schools in Arizona

Private schools whose lowest grade is 9, by total enrollment.

High school	City	Students
Salpointe Catholic High School	Tucson	1,253
Xavier College Preparatory	Phoenix	1,122
Notre Dame Preparatory	Scottsdale	863
Seton Catholic Preparatory High School	Chandler	544
Yuma Catholic High School	Yuma	488

NCES Private School Universe Survey 2021-22, respondents only. Total enrollment, not a grades 9-12 count.

What these counts cover

A high school here is a school that serves grade 12. Virtual schools are left out, because a school with no building is not comparable to one with a campus. Public counts come from the federal Common Core of Data, which every public district reports to. Private counts come from the federal Private School Universe Survey.

Enrollment for public schools is the number of students in grades 9 through 12, so a school that also teaches middle school grades is not inflated by them. A school that reports no enrollment figure is counted in the state total but cannot be ranked, which is why the number of schools with an enrollment figure is smaller than the public count.

Private high schools in Arizona

The private table below shows the largest private high schools whose lowest grade is 9. The survey is voluntary, so treat these as the largest among the schools that answered, not a complete ranking. A private school that declines the survey does not appear at all.

Private enrollment is a total, not a grades 9 through 12 count, because the survey does not break it out the same way. Limiting the list to schools that start at grade 9 keeps the figures comparable to each other.

What a family should do with this

Size is a starting point, not a verdict. A large school usually offers more courses, more sports and more clubs, and a small school usually gives a student more contact with the adults who write recommendation letters. Both shapes send students to good colleges.

The more useful question is where a school's own graduates actually go. Our page for each Arizona high school carries that school's figures and, where the school publishes one, its own numbered list of the colleges its graduates chose. Start from the school page rather than from the size of the building.

Questions parents ask

How many high schools are in Arizona?

Arizona has 934 high schools: 831 public and 103 private. The largest is Hamilton High School in Chandler, with 3,444 students in grades 9 through 12.

What is the largest high school in Arizona?

It enrolls 3,444 students in grades 9 through 12 in Chandler.

Are private high schools included in the Arizona count?

831 are public and 103 are private. The private count is a floor, because the federal private school survey is voluntary and a school can skip it.

Method & sources: Public school counts and grade 9-12 enrollment come from the NCES Common Core of Data; private counts and enrollment come from the NCES Private School Universe Survey, whose respondents are a floor. A high school is a school serving grade 12; virtual schools are excluded. The public table is ranked by grade 9-12 enrollment, and schools without an enrollment figure are counted in the state total but not ranked.

This brief as data: /research/high-schools-in-arizona.json. Free for editorial use with attribution to Test Prep Gurus (High School Reach).