charter schoolhighGrade 7-12

Robert L. Duffy High School

3816 N 27Th Ave, Phoenix, AZ 85017, United States

+1 (602) 393-4200

http://www.csschools.com

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Overall Rating

Location

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Robert L. Duffy High School Overview

About This School

Robert L. Duffy High School is a charter school high in Phoenix, Arizona, serving 56 students in grades Grade 7-12. The school maintains a student-teacher ratio of 11:1 with a staff of 5 teachers who earn an average annual salary of $34,735. Students are predominantly Hispanic at 75%, while the remaining population includes 9% White, 7% Black, and 5% students of two or more races. The student body is composed of 59% male and 41% female.

Total Students

Grade 7-12

11:1

Student-Teacher Ratio

5 full-time teachers

Academic Performance

Percentage of students who met or exceeded state standards

English Language Arts0%

Mathematics0%

Science0%

School Information

School Type

charter school

Grade Levels

Grade 7-12

County

Maricopa County

Students per Counselor

N/A:1

Robert L. Duffy High School Academics & Test Scores

Test Scores

State assessment results showing percentage of students proficient or above

N/A

English Language Arts

N/A

Mathematics

N/A

Science

Class Information

11:1

Student-Teacher Ratio

City Avg: 17.2:1

State Avg: 17.5:1

Students per Counselor

Robert L. Duffy High School Teachers & Staff

Teaching Staff

Total Full-Time Teachers

Average Teacher Salary

$34,735

City Avg: $53,913

State Avg: $56,704

Based on state average salaries for full-time teachers

Support Staff

Student-Teacher Ratio11:1

Students per Counselor:1

Robert L. Duffy High School Student Demographics

Student Body

58.93%

Male

41.07%

Female

Total Enrollment: 56 students

Racial & Ethnic Diversity

White8.93%

Hispanic75%

Asian0%

Black7.14%

Two or More Races5.36%

Native American3.57%

Robert L. Duffy High School Reviews

Frequently Asked Questions About Robert L. Duffy High School

Q: What is Robert L. Duffy High School?

A: Robert L. Duffy High School is a high charter school located in Phoenix.

Q: How many students attend Robert L. Duffy High School?

A: Robert L. Duffy High School has approximately 56 students enrolled.

Q: What is the student-teacher ratio at Robert L. Duffy High School?

A: The student-teacher ratio at Robert L. Duffy High School is 11:1.

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Detailed Information about Robert L. Duffy High School

Data sourced from NCES, CCD, and state education agencies. Last verified: May 2026. See methodology →

Schoolary Research Team

Verified with NCES & state education agency data

About Robert L. Duffy High School - Phoenix, AZ

Quick Facts about Robert L. Duffy High School
School Name	Robert L. Duffy High School
School Type	charter school
Grade Levels	Grade 7-12
Location	3816 N 27Th Ave, Phoenix, AZ 85017, Phoenix, AZ
County	Maricopa County
Phone	+1 (602) 393-4200
Total Students	56
Student-Teacher Ratio	11:1
Full-Time Teachers	5
Rating	/10
ELA Proficiency	%
Math Proficiency	%
Science Proficiency	%

Frequently Asked Questions about Robert L. Duffy High School

What is Robert L. Duffy High School?

Robert L. Duffy High School is a high charter school located in Phoenix.

How many students attend Robert L. Duffy High School?

Robert L. Duffy High School has approximately 56 students enrolled.

What is the student-teacher ratio at Robert L. Duffy High School?

The student-teacher ratio at Robert L. Duffy High School is 11:1.

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