Enrollment
139
Arizona · 2024-25 NCES data
2024-25 NCES data High school (grades 9-12) NCES 040052003063
Ajo High School — Ajo, AZ
Federal NCES profile for Ajo High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators — Resource Investment Index 10/100.
👥 Class size 0
📚 AP courses 10
🌟 Gifted program 30
📋 Attendance 0
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: Ajo Unified District (4409) · 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)
3.0
Federal CCD staff survey
Students per teacher
45:1
vs 17.7:1 Arizona avg
+154% vs state
Free-lunch eligible
57.8%
vs 48.3% Arizona avg
+20% vs state
Student-teacher ratio in context
How Ajo 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
Ajo High School reports 139 enrolled students to the National Center for Education Statistics (NCES) alongside 3.0 full-time-equivalent teachers, producing a 45:1 student-teacher ratio. That figure sits 154% above the Arizona state mean of 17.7:1, signalling larger average class loads than peers in the same state. Against the national 2024-25 average of 15.9:1, it is 183% higher, a useful calibration for families comparing districts across state lines.
Title I and federal lunch eligibility offer another window into the student body: 57.8% of pupils qualify for free meals, a proxy for household income that federal programs use to direct funding. The free-lunch share is 20% above the Arizona average and 12% above the national baseline. Chronic absenteeism — missing 10% or more of school days — stands at 51.8% according to the 2021-22 Civil Rights Data Collection.
On the finance side, the surrounding Ajo Unified District (4409) spends $10,866 per pupil district-wide, below the Arizona average of $15,070 and below the national average of $19,490. Revenue comes 23.1% from local sources (property taxes), 57.9% from the state, and 19.0% from federal programs per the NCES F-33 finance survey. Taken together, these measurements produce a Resource Investment Index of 10/100 (F), calculated from 4 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 Ajo 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 | 45:1 | ▲ 154% | 17.7:1 | 15.9:1 |
| Free-lunch eligible | 57.8% | ▲ 20% | 48.3% | 51.8% |
| Enrollment | 139 | top 23% | — | — |
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
57.8%
free-lunch eligible
— 20% 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
45:1
students per teacher
— 154% above state mean
Top 99% in Arizona — lower ratio than 1% of state schools
Above 20:1 — larger class loads than the typical U.S. public school; staffing is stretched relative to enrollment.
Engagement
51.8%
chronically absent (missed 10%+ of school days)
Chronic absenteeism at or above 20% — the CDC threshold for "high" — signals significant barriers to regular attendance.
Funding equity
$10,866
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
Counselors0.0 FTE
Student-support staffing from the Civil Rights Data Collection.
Discipline context
29
in-school suspensions + 9 out-of-school
Suspension rate: 20.9 per 100 students. Combined in-school and out-of-school rate: 27.3 per 100 students. Reported via the Civil Rights Data Collection.
Overview
Enrollment 139 Top 23% in Arizona — larger than 77% of 2,186 state schools
Teachers (FTE) 3.0
Students per teacher 45:1 +154% vs state
Free-lunch eligible 57.8% +20% vs state
NCES ID 040052003063
Student demographics
Hispanic or Latino 73.4%
White 9.4%
Two or More 7.2%
American Indian / Alaska Native 6.5%
Asian 2.2%
African American 1.4%
Largest group: Hispanic or Latino at 73.4% of enrollment.
Programs & staff
AP program Not offered
Counselors (FTE) 0.0
Discipline & special education
Chronically absent 51.8%
In-school suspensions 29
Out-of-school suspensions 9
Funding & spending
District-wide per-pupil expenditure for Ajo Unified District (4409), which includes Ajo High School.
$10,866
Per student
-28%
vs Arizona
Avg $15,070
-44%
vs U.S.
Avg $19,490
Revenue mix
Local 23.1%
State 57.9%
Federal 19.0%
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
- 258
- Students per teacher
- 17.9:1
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 Ajo High School
How many students attend Ajo High School?
Ajo High School has 139 students enrolled. It is a high school in AJO, AZ.
What is the student-teacher ratio at Ajo High School?
The student-teacher ratio at Ajo High School is 45:1, which is 154% higher than the Arizona average of 17.7:1 and 183% higher than the national average of 15.9:1.
What percentage of students receive free lunch at Ajo High School?
57.8% of students at Ajo High School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Ajo High School?
The largest demographic group at Ajo High School is Hispanic or Latino at 73.4%. The school serves a diverse student body in AJO, AZ.
What is the Resource Investment Index for Ajo High School?
Ajo High School has a Resource Investment Index of 10/100 (F) based on 4 factors: student-teacher ratio, attendance rates. This index measures federal resource allocation — staffing levels, program availability, and support services — not standardized test scores or academic outcomes.