Enrollment
390
Arizona · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 040633002670
Phoenix Union Bioscience High School — Phoenix, AZ
Federal NCES profile for Phoenix Union Bioscience High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 41/100.
👥 Class size 33
📚 AP courses 10
🌟 Gifted program 70
🎓 Counselors 22
📋 Attendance 69
How this works: Each indicator above is scored 0–100 from federal NCES and CRDC data, then averaged into the Resource Investment Index. This measures resource allocation — staffing, programs, and support services — not standardized test scores or academic outcomes. Full methodology →
School address
District: Phoenix Union High School District (4286) · Arizona
Public location data per NCES (National Center for Education Statistics) Common Core of Data. Verify the school's current address on the NCES CCD record.
Teachers (FTE)
22.0
Federal CCD staff survey
Students per teacher
16.8:1
vs 17.7:1 Arizona avg
-5% vs state
Free-lunch eligible
50.0%
vs 48.3% Arizona avg
+4% vs state
Student-teacher ratio in context
How Phoenix Union Bioscience High School compares with Arizona and U.S. medians
The federal record — no proprietary index, no editorial formula.
PlainSchools publishes the actual federal measurements — enrollment, staffing, demographics, discipline, and finance — straight from the NCES Common Core of Data, CRDC, and F-33 surveys. No composite rating, no opinion-based score on top. You get the same raw numbers researchers and policymakers use, with benchmarks, spending context, and equity indicators computed from the same federal datasets. Full methodology linked below.
What this school's NCES data tells you
Phoenix Union Bioscience High School reports 390 enrolled students to the National Center for Education Statistics (NCES) alongside 22.0 full-time-equivalent teachers, producing a 16.8:1 student-teacher ratio. That figure sits 5% below the Arizona state mean of 17.7:1, signalling more teacher attention per pupil than the state benchmark. Against the national 2024-25 average of 15.9:1, it is 6% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 50.0% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 4% above the Arizona average and 3% below the national baseline. The school offers 2 Advanced Placement courses, a stronger academic pipeline indicator than enrollment alone. Counselor coverage works out to roughly 390 students per counselor, above the ASCA-recommended ceiling of 250:1. Chronic absenteeism — missing 10% or more of school days — stands at 12.3% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Phoenix Union High School District (4286) spends $14,520 per pupil district-wide, below the Arizona average of $15,070 and below the national average of $19,490. Revenue comes 57.9% from local sources (property taxes), 24.1% from the state, and 18.0% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 41/100 (D), calculated from 5 distinct NCES and CRDC indicators measuring resource allocation rather than academic outcomes.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Phoenix Union Bioscience High School compares
Cross-validating school-level NCES values against Arizona state and U.S. national means lets readers see whether this school is an outlier or in line with peers.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 16.8:1 | ▼ 5% | 17.7:1 | 15.9:1 |
| Free-lunch eligible | 50.0% | ▲ 4% | 48.3% | 51.8% |
| Enrollment | 390 | top 47% | — | — |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
What the federal data reveals about equity at this school
Federal measurements — not ratings — surface the resource and opportunity picture. Below are the indicators that researchers, civil-rights monitors, and funding formulas use to assess equity.
Economic need
50.0%
free-lunch eligible
— 4% above the Arizona average of 48.3%
Above the 40% Title I schoolwide threshold — federal funds support the whole school, not individual students.
Staffing depth
16.8:1
students per teacher
— 5% below state mean
Top 45% in Arizona — lower ratio than 55% of state schools
Between 15:1 and 20:1 — in line with the typical U.S. public-school staffing range.
Engagement
12.3%
chronically absent (missed 10%+ of school days)
Between 10–20% — above the pre-pandemic baseline of ~15% nationally but within the current U.S. range.
Funding equity
$14,520
per pupil, district-wide
— below Arizona avg of $15,070
Below the U.S. average per-pupil spend — funding constraints may affect programs, facilities, and staffing.
Support staff
Counselors1.0 FTE
Per 390 students — the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 390 Top 47% in Arizona — larger than 53% of 2,186 state schools
Teachers (FTE) 22.0
Students per teacher 16.8:1 -5% vs state
Free-lunch eligible 50.0% +4% vs state
NCES ID 040633002670
Student demographics
Hispanic or Latino 69.2%
White 13.3%
Asian 9.0%
African American 5.6%
Two or More 2.6%
American Indian / Alaska Native 0.3%
Largest group: Hispanic or Latino at 69.2% of enrollment.
Programs & staff
AP courses offered 2
Gifted & talented Yes
Counselors (FTE) 1.0
Students per counselor 390:1
Discipline & special education
Chronically absent 12.3%
In-school suspensions 0
Out-of-school suspensions 0
Funding & spending
District-wide per-pupil expenditure for Phoenix Union High School District (4286), which includes Phoenix Union Bioscience High School.
$14,520
Per student
-4%
vs Arizona
Avg $15,070
-26%
vs U.S.
Avg $19,490
Revenue mix
Local 57.9%
State 24.1%
Federal 18.0%
Source: NCES F-33 School District Finance Survey District-level finance · FY 2021-22 Per-pupil expenditure reflects the district-wide average. Individual school budgets are not reported at the federal level.
Other Schools in This District
- Enrollment
- 2,850
- Students per teacher
- 20:1
- Enrollment
- 2,598
- Students per teacher
- 21.6:1
- Enrollment
- 2,532
- Students per teacher
- 20.3:1
- Enrollment
- 2,207
- Students per teacher
- 19.3:1
- Enrollment
- 2,169
- Students per teacher
- 18.3:1
Similar high schools in Phoenix
6 comparable high schools (grades 9-12) serving the same city.
Trevor Browne High School
Standard public school
2,850 students 20:1 students per teacher
Desert Vista High School
Standard public school
2,761 students 23.5:1 students per teacher
Maryvale High School
Standard public school
2,532 students 20.3:1 students per teacher
Sunnyslope High School
Standard public school
2,322 students 24.3:1 students per teacher
South Mountain High School
Standard public school
2,207 students 19.3:1 students per teacher
Alhambra High School
Standard public school
2,169 students 18.3:1 students per teacher
Educator & family resources
In-depth guides on understanding NCES data, school choice, and education funding.
Understanding NCES data
How CCD, CRDC and EDFacts feed every public-school number you see.
Choose a school district
Eight signals that matter more than the overall ranking number.
How schools are funded
Title I, F-33, state aid formulas and what per-pupil spending really means.
Chronic absenteeism
Why missing 10% of school matters and how it varies by district.
Magnet vs charter vs traditional
Three school types, three funding models, three sets of trade-offs.
School discipline data
What CRDC suspension and expulsion records do and don't reveal.
Frequently asked questions about Phoenix Union Bioscience High School
How many students attend Phoenix Union Bioscience High School?
Phoenix Union Bioscience High School has 390 students enrolled. It is a high school in PHOENIX, AZ.
What is the student-teacher ratio at Phoenix Union Bioscience High School?
The student-teacher ratio at Phoenix Union Bioscience High School is 16.8:1, which is 5% lower than the Arizona average of 17.7:1 and 6% higher than the national average of 15.9:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Phoenix Union Bioscience High School?
50.0% of students at Phoenix Union Bioscience High School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Phoenix Union Bioscience High School?
The largest demographic group at Phoenix Union Bioscience High School is Hispanic or Latino at 69.2%. The school serves a diverse student body in PHOENIX, AZ.
What is the Resource Investment Index for Phoenix Union Bioscience High School?
Phoenix Union Bioscience High School has a Resource Investment Index of 41/100 (D) based on 5 factors: student-teacher ratio, AP course offerings, counselor availability, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.