Enrollment
56
High
DISTRICT 339 · STATE 631
SCHOOL COMMUNITY·CAREER SUCCESS SCHOOLS (79047)·NCES 040021902367
Robert L. Duffy High School
3816 N 27TH AVE, PHOENIX, AZ 85017 · (602) 393-4200 · Maricopa County
GRADES 07–12HIGH11-CITYCHARTERALTERNATIVE EDUCATION SCHOOL56 STUDENTS
Student : Teacher
11.2:1
5 FTE teachers
DISTRICT 51.6:1 · STATE 20.2:1
Free / Reduced Lunch
,
Title I proxy
STATE 95%
Community
0
0 members
Enrollment and student:teacher ratio compared against other high schools. Free/Reduced Lunch and demographics compared against all schools.
Enrollment by grade, 2024-25
| Grade | Students | Share |
|---|---|---|
| Grade 9 | 10 | 18% |
| Grade 10 | 13 | 23% |
| Grade 11 | 12 | 21% |
| Grade 12 | 21 | 38% |
Student demographics
42%Diversity index
The chance that two students picked at random belong to different racial or ethnic groups.
DISTRICT 54% · STATE 65% · US 70%
Student head counts by race/ethnicity from federal NCES enrollment data. District, state, and US figures are each group's share of all public school students in that area (US excludes territories). Very small groups may be suppressed in the source, so categories do not always sum exactly to total enrollment.
Gender split
Test scores
AASA 2023-24 . % PassingEnglish Language Arts
2.0%
own-school result
Math
2.0%
own-school result
State assessment results for this school reflect a specialized student population. The figures above are the school's own reported scores; they are not directly comparable to state averages or to general-enrollment schools, so the usual state-average comparison line is suppressed here.
AASA results by year
| School year | English Language Arts | Math |
|---|---|---|
| 2023-24 | 2.0% | 2.0% |
| 2022-23 | 2.0% | 2.0% |
| 2020-21 | 2.0% | 2.0% |
| 2018-19 | 2.0% | 2.0% |
| 2017-18 | 2.0% | 2.0% |
% Passing, all students and all tested grades.
Source: AASA. All students, all grades. See all years and grades →
BeatsExpectations
Not computed for this schoolBeatsExpectations is not computed for specialized-population schools (schools for the deaf or blind, therapeutic and behavioral-health placements, juvenile-justice and alternative-education settings, and similar). State ELA/Math proficiency rates are not a comparable metric for these populations, so a demographically-adjusted residual against general-enrollment peers would be misleading. About the methodology →
Where Robert L. Duffy High School ranks
Among high schools| Measure | This school | In Arizona | In Maricopa County |
|---|---|---|---|
| Enrollment ranked largest first | 56 | #396 of 510 | #201 of 248 |
Ranked against other public high schools. Online schools are left out of every list, and test-score lists leave out schools that serve specialized populations. Each rank links to the full list. Arrows under a test-score rank show places moved since the prior test year, among schools tested both years.
4-year change
SY 2020-21 vs SY 2024-25Enrollment
56
+28 (+100%) vs 2020
-38% since 2010-11, when it was 90
Source: NCES Common Core of Data
Enrollment and staffing by year
| School year | Students | Teachers (FTE) | Students per teacher | Free and reduced lunch |
|---|---|---|---|---|
| 2024-25 | 56 | 5 | 11.2:1 | N/A |
| 2023-24 | 59 | N/A | N/A | N/A |
| 2022-23 | 46 | N/A | N/A | 70% (32) |
| 2020-21 | 28 | N/A | N/A | N/A |
| 2017-18 | 53 | N/A | N/A | N/A |
| 2015-16 | 53 | N/A | N/A | 51% (27) |
| 2010-11 | 90 | N/A | N/A | 31% (28) |
Source: NCES Common Core of Data. Rows are the federal collections on file for Robert L. Duffy High School.
About Robert L. Duffy High School
Robert L. Duffy High School is a high school in PHOENIX, Arizona, according to federal school records. Classes run from 7 through 12, and the school has 56 students. The typical figure for high schools in Arizona is about 631 students.
Career Success Schools (79047) has 1,145 students in 4 schools, and Robert L. Duffy High School is one of those schools.
Hispanic students account for 75% of enrollment at Robert L. Duffy High School. The remaining students are 9% White, 7% Black, 5% multiracial, and 4% Native American. Census figures show Maricopa County is about 31% Hispanic. By the diversity index, Robert L. Duffy High School comes in at 42%.
Robert L. Duffy High School counts 5 full-time-equivalent teachers, about 11.2 students for each one. The 20.2:1 average for high schools in Arizona is higher than this school's figure.
Census estimates describe Maricopa County this way: median household income is about $89,300, a bachelor's degree or higher is held by about 37% of adults, and the poverty rate is about 8%. Federal data list 1,352 public schools in Maricopa County, with a combined enrollment of about 725,139.
Wilson Elementary School is located about 0.7 miles from Robert L. Duffy High School. Within five miles are at least 8 other public schools.
Locale: City: Large. In NCES terms, the school is inside a principal city with a population of 250,000 or more. Robert L. Duffy High School is a charter school, a type of public school that operates under a charter.
Enrollment records show 28 in 2020-21 and 56 in 2024-25. Because schools sometimes add or drop grades, the two numbers may not be directly comparable.
Discussions about Robert L. Duffy High School may include school safety, transportation, and start times. Alumni can share how the school prepared them.
Maricopa County at a glance
View full county profilePopulation
4,559,748
Census ACS
Median income
$89,300
Household, ACS
Bachelor's+
37%
Adults 25+
Poverty rate
8%
Below federal line
Schools in county
1,352
725,139 students
Quick facts
Related schools
Other schools in Career Success Schools (79047)
- Career Success Schools - STEM Academy 7-12High · 519 students
- Tech CampusHigh · 442 students
- Career Success School - Sage CampusElementary · 128 students
Other schools in PHOENIX
- Arizona Virtual AcademyCombined · 4,476 students
- Trevor Browne High SchoolHigh · 2,850 students
- Desert Vista High SchoolHigh · 2,761 students
- Maryvale High SchoolHigh · 2,532 students
- Pinnacle High SchoolHigh · 2,430 students
- Sunnyslope High SchoolHigh · 2,322 students
Nearby schools
- Wilson Elementary School0.7 mi · 441
- Wilson Primary School0.7 mi · 413
- Phoenix Union-Wilson College Preparatory0.7 mi · 197
- Creighton Virtual Academy1.3 mi · 19
- Excelencia School1.3 mi · 501
- The Creighton Academy1.3 mi · 411
Frequently asked questions
About Robert L. Duffy High SchoolWhat is the total enrollment at Robert L. Duffy High School?
Robert L. Duffy High School enrolls approximately 56 students in grades 07-12.
Is Robert L. Duffy High School an elementary, middle, or high school?
Robert L. Duffy High School is a high school covering grades 07-12.
What is the student-teacher ratio at Robert L. Duffy High School?
The student-to-teacher ratio at Robert L. Duffy High School is approximately 11.2:1 (5 FTE teachers).
What is the racial breakdown of students at Robert L. Duffy High School?
At Robert L. Duffy High School, the student body is approximately 9% White, 75% Hispanic, 7% Black, 5% Two or more.
Who oversees Robert L. Duffy High School?
Robert L. Duffy High School is overseen by Career Success Schools (79047) in Maricopa County.
Data sourceSchool profile facts are sourced from the NCES. Community content is posted by allk12 members.