At a glance
Reported students
56
NCES CCD 2024–25
Teachers (FTE)
5
NCES CCD 2024–25
Student–teacher ratio
11.2:1
Calculated; not a class-size measure
Grades served
07–12
NCES preliminary directory 2025–26
School benchmarks
Arizona high enrollment
46th percentile
Compared with 770 same-level schools reporting enrollment.
District median enrollment
285
Robert L. Duffy High School: 56 reported students.
State peer staffing position
19th percentile
11.2:1 reported; state peer median 18.1:1. Ratio is not class size.
Historical enrollment and staffing · CRDC 2021–22
These older figures are kept separate from 2024–25 statistics and benchmarks. Differences between years can reflect changes in enrollment, staffing, or reporting scope.
- Students
- 52
- Teachers (FTE)
- 2
- Student–teacher ratio
- 26:1
What the reported data says about Robert L. Duffy High School
Robert L. Duffy High School is a public high school serving grades 07–12 in Phoenix. It is one of 4 current school records connected to Career Success Schools (79047). NCES reports 56 students for 2024–25.
Among 770 high schools in Arizona with comparable records, this school is smaller than the reported median of 80 students. Its enrollment is at approximately the 46th percentile for that peer group. Size describes the campus, not instructional quality.
The reported student–teacher ratio is 11.2:1, below the Arizona median of 18.1:1 for the same school level. This ratio uses total enrollment and teacher FTE; it is not an average classroom headcount and can be affected by special programs or part-time staffing.
The largest reported race and ethnicity groups are Hispanic or Latino (75%) and White (8.9%). English learners represent 23.1% of enrollment. Students served under IDEA represent 9.6%. These figures help families understand who the school serves; they are not rating inputs.
Questions worth asking Robert L. Duffy High School
- 1How do the reported 11.2:1 student–teacher ratio and 5 teacher FTE translate into actual class sizes by grade?
- 2Have the reported academic programs changed since the 2021–22 CRDC collection?
- 3What counseling support is available today? The school reported 0 counselor FTE in 2021–22.
- 4Does community eligibility provide breakfast and lunch to every enrolled student, and are summer meals available?
Enrollment needs
- English learners
- 23.1%
- Students with disabilities
- 9.6%
- Lunch program
- Yes under Community Eligibility Option (CEO)
Reported support staff
- Counselors (FTE)
- 0
- Nurses (FTE)
- 0
- Psychologists (FTE)
- 0
- Social workers (FTE)
- 0
CRDC 2021–22 full-time-equivalent counts; verify current assignments with the school.
Student demographics
Race and ethnicity share of reported enrollment
- White8.9%
- Hispanic75%
- Black7.1%
- Asian0%
- American Indian / Alaska Native3.6%
- Native Hawaiian / Pacific Islander0%
- Multiracial5.4%
Race/ethnicity: NCES CCD 2024–25. English learner and disability context: CRDC 2021–22. Lunch eligibility: NCES CCD 2024–25. Privacy rules can produce missing values.
Programs reported by the school
AP student enrollment
No students enrolled reported
Gifted and talented
Not reported as offered
Computer science
Not reported as offered
CRDC 2021–22: the AP flag records student enrollment; gifted and computer-science fields describe reported programs/classes. Confirm current courses and eligibility with the school.
Other schools in Career Success Schools (79047)
Start with campuses at the same school level or with similar reported enrollment.
Tech Campus
High · Grades 09–12
442 reported students
Career Success Schools - STEM Academy 7-12
High · Grades 07–12
519 reported students
Career Success School - Sage Campus
Elementary · Grades KG–08
128 reported students
Public schools near Robert L. Duffy High School
Closest campuses by straight-line distance between NCES geocodes, favoring the same school level. Distance is not drive time or an attendance assignment.
| School | Grades | Students | Distance |
|---|---|---|---|
| Phoenix Union-Wilson College Preparatory High · Phoenix Union High School District (4286) | 09–12 | 197 | 0.7 mi |
| Gateway Early College High School High · Charter · Maricopa County Community College District dba Gat (4314) | 09–12 | 350 | 1.7 mi |
| ASU Preparatory Academy - Phoenix 7-12 High · Charter · ASU Preparatory Academy (91303) | 07–12 | 360 | 2.2 mi |
| Phoenix Union Bioscience High School High · Phoenix Union High School District (4286) | 09–12 | 390 | 2.4 mi |
| Kaizen Education Foundation dba Summit High School High · Charter · Kaizen Education Foundation dba Summit High School (79876) | 09–12 | 201 | 2.5 mi |
| Genesis Academy High · Charter · Genesis Program Inc. (4332) | 09–12 | 49 | 2.6 mi |
Frequently asked questions about Robert L. Duffy High School
What grades does Robert L. Duffy High School serve?
Robert L. Duffy High School reports grades 07–12 in the NCES 2025–26 preliminary directory. It is classified as a high school (alternative school) in Career Success Schools (79047).
How many students attend Robert L. Duffy High School?
Robert L. Duffy High School reported 56 students in the NCES 2024–25 membership file. That places it near the 46th percentile among 770 Arizona high schools reporting enrollment. The 2021–22 civil-rights collection recorded 52 students.
What is the student–teacher ratio at Robert L. Duffy High School?
The calculated ratio is 11.2:1, based on 56 students and 5 full-time-equivalent classroom teachers in 2024–25. The Arizona median for the same school level is 18.1:1. A ratio is not the same as average class size.
Is Robert L. Duffy High School a public, charter, or magnet school?
Robert L. Duffy High School is a public school operating as a charter school. Admission can involve an application or lottery, so check enrollment windows with the school.
Which school district is Robert L. Duffy High School in?
Robert L. Duffy High School is part of Career Success Schools (79047), based in Phoenix, AZ, which operates 4 current schools. Confirm attendance zones and enrollment rules with the district.
What public schools are near Robert L. Duffy High School?
The closest public schools by straight-line distance include Phoenix Union-Wilson College Preparatory (0.7 mi), Gateway Early College High School (1.7 mi), ASU Preparatory Academy - Phoenix 7-12 (2.2 mi). Distance does not determine eligibility; attendance boundaries and program rules do.