- Enrollment
- 2,938
- Students per teacher
- 18.1:1
- Resource Index
- 43/100
Middle school (grades 6-8) · Tucson, AZ
Gridley Middle School
Federal NCES profile for Gridley Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 43/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 040880000848
👥 S:T ratio 52
🌟 Gifted program 70
🎓 Counselors 50
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Gridley Middle School earns 43/100 on the Resource Investment Index, with class sizes smaller than 85% of Arizona schools.
- #8 of 25
- middle schools in Tucson · Resource Index
- 43
- Resource Index · Typical
- 11.9:1
- small classes for Arizona
- 48.9%
- free-lunch eligible
Gridley Middle School has class sizes smaller than 85% of Arizona schools. Computed live against every Arizona school reporting to NCES.
By Resource Investment Index, Gridley Middle School ranks #8 of 25 middle schools in Tucson, AZ.
School address
District: Tucson Unified District (4403) · Arizona
NCES ID 040880000848 Verify on NCES CCD record →
CCD year-over-year · 2022-23 → 2023-24
-16 students YoY
Gridley Middle School held near 514 students from 2022-23 to 2023-24 (-16 headcount).
Teacher FTE held 42.4 → 42.4 across the same CCD years.
Source: NCES Common Core of Data public-school universe (2022-23, 2023-24).
Steady CCD campus
-16 students YoY 040880000848 · Tucson, AZ Middle · MID · TRAD
501 enr · 11.9:1 · 48.9% lunch · RII 43
Nearest enrollment peer: Tucson Magnet High School (2,938 students)
Gridley Middle School held near 514 students from 2022-23 to 2023-24 (-16 headcount). Teacher FTE held 42.4 → 42.4 across the same CCD years. Read with this school → · District book → · Arizona schools → · Find another →
Gridley Middle School in the enrollment neighbourhood
Fall enrollment among this campus and nearest district peers
- Tucson Magnet
Tucson Magnet High School
2,938 students
- Pueblo High Sc
Pueblo High School
1,821 students
- Cholla High Sc
Cholla High School
1,575 students
- Sahuaro High S
Sahuaro High School
1,250 students
- Catalina Onlin
Catalina Online Learning Experience
1,184 students
- This school 501
Gridley Middle School
501 students
What this shows Gridley Middle School reports 501 students on the CCD universe file.
How Gridley Middle School compares
Gridley Middle School held steady on CCD headcount: ratios and free-lunch share vs Arizona and U.S. means.
| Metric | This school | vs Arizona | Arizona avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 11.9:1 | ▼ 30% | 17:1 | 15.7:1 |
| Free-lunch eligible | 48.9% | ▲ 1% | 48.3% | 51.7% |
| Enrollment | 501 | top 39% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
11.9:1
Leaner classes than 76% of US schools, among the more generously staffed nationally.
501
Bigger than 62% of US schools by enrollment, mid-sized for the country.
Equity indicators methodology
Economic need
48.9%
free-lunch eligible
- 1% 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
11.9:1
students per teacher
- 30% below state mean
Top 15% in Arizona - lower ratio than 85% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
83.8%
chronically absent (missed 10%+ of school days)
At or above 20%, the commonly used threshold for "high" chronic absenteeism, signaling significant barriers to regular attendance.
Funding equity
$13,783
per pupil, district-wide
- above Arizona avg of $13,502
Well below the U.S. average per-pupil spend, a notably leaner funding position that may affect programs, facilities, and staffing.
Support staff
Counselors2.0 FTE
Per 251 students, the combined health-and-guidance staffing load for this school.
Discipline context
15
in-school suspensions + 86 out-of-school
Suspension rate: 3.0 per 100 students. Combined in-school and out-of-school rate: 20.2 per 100 students. Reported via the Civil Rights Data Collection.
Student demographics
Hispanic or Latino 41.7%
White 38.1%
African American 8.4%
Two or More 7.0%
Asian 2.2%
Native Hawaiian / Pacific Islander 1.4%
American Indian / Alaska Native 1.2%
Largest group: Hispanic or Latino at 41.7% of enrollment.
Student-body diversity index 66.8/100
Simpson diversity index - at 66.8, Gridley Middle School is more mixed than the Arizona school average of 47.2.
Programs
Gifted & talented Yes
District finance for Tucson Unified District (4403) reports $13,783 per pupil (NCES F-33) - open the district page for the full revenue mix.
How Gridley Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Tucson Magnet High School | Larger | Similar economic need | Higher S:T ratio |
| Pueblo High School | Larger | Higher economic need | Higher S:T ratio |
| Cholla High School | Larger | Similar economic need | Higher S:T ratio |
| Sahuaro High School | Larger | Similar economic need | Higher S:T ratio |
| Catalina Online Learning Experience | Larger | No free-lunch data | No ratio data |
Comparisons are relative to Gridley Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,821
- Students per teacher
- 17.7:1
- Resource Index
- 36/100
- Enrollment
- 1,575
- Students per teacher
- 17.1:1
- Resource Index
- 41/100
- Enrollment
- 1,250
- Students per teacher
- 18.7:1
- Resource Index
- 37/100
- Enrollment
- 1,184
- Students per teacher
- -
- Resource Index
- 15/100
Similar middle schools in Tucson
2 comparable middle schools (grades 6-8) serving the same city.
Nationwide middle schools with similar size or staffing
Out-of-state peers matched by enrollment and by student-teacher ratio, not the same-city or same-district lists above.
Similar enrollment (~501 students)
Frequently asked questions about Gridley Middle School
How many students attend Gridley Middle School?
Gridley Middle School has 501 students enrolled. It is a middle school in Tucson, AZ. CCD year-over-year: 530 (2022-23) → 514 (2023-24), nearly flat (-16).
What is the student-teacher ratio at Gridley Middle School?
The student-teacher ratio at Gridley Middle School is 11.9:1, which is 30% lower than the Arizona average of 17:1 and 24% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What percentage of students receive free lunch at Gridley Middle School?
48.9% of students at Gridley Middle School are eligible for free lunch, compared to the Arizona average of 48.3%.
What is the racial and ethnic makeup of Gridley Middle School?
The largest demographic group at Gridley Middle School is Hispanic or Latino at 41.7% of enrollment, in Tucson, AZ. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 66.8/100.
What is the Resource Investment Index for Gridley Middle School?
Gridley Middle School has a Resource Investment Index of 43/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, gifted-program reporting, counselor availability, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Gridley Middle School rank among middle schools in Tucson?
By Resource Investment Index, Gridley Middle School ranks #8 of 25 middle schools in Tucson, AZ. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all middle schools in Tucson on the city page.
What other schools are in Tucson Unified District (4403)?
Besides Gridley Middle School, Tucson Unified District (4403) also operates Tucson Magnet High School (2,938 students), Pueblo High School (1,821 students), and Cholla High School (1,575 students). See the Tucson Unified District (4403) district page for the complete list.