Enrollment
1,220
Illinois · 2024-25 NCES data
Middle school (grades 6-8) · Alton, IL
Alton Middle School
Federal NCES profile for Alton Middle School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 39/100.
2024-25 NCES dataMiddle school (grades 6-8)NCES 170360005841
👥 S:T ratio 48
🌟 Gifted program 70
📋 Attendance 0
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →
The verdict
Alton Middle School earns 39/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also one of the largest schools in Illinois.
- #1 of 6
- public schools in Alton · Resource Index
- 39
- Resource Index · Typical
- 13.1:1
- students per teacher
- 1,220
- students enrolled
Alton Middle School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Alton Middle School ranks #1 of 6 public schools in Alton, IL.
School address
Teachers (FTE)
93.0
Federal CCD staff survey
Students per teacher
13.1:1
vs 14:1 Illinois avg
-6% vs state
Student-teacher ratio in context
How Alton Middle School compares with Illinois and U.S. medians
What stands out at Alton Middle School
Alton Middle School is a large middle school in Alton, Illinois, enrolling 1,220 students.
At 13.1:1, its student-teacher ratio sits close to the Illinois median, within a few percentage points of the 14:1 state norm, neither notably crowded nor notably small.
By headcount it is one of the larger campuses in Illinois, bigger than 95% of state schools at 1,220 students.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by White (52%) and African American (29%), more mixed than most schools in the state (diversity index 63/100).
Chronic absenteeism is elevated: 56.6% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
Its district draws 15.5% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
Discipline events run high: 469 in- and out-of-school suspensions were reported for 1,220 students in the 2021-22 Civil Rights Data Collection.
The federal civil-rights collection also records 7 expulsions at this campus for 2021-22.
Alton Cusd 11 also operates Alton High School (1,823 students) and North Elementary School (549 students) alongside Alton Middle School.
Sourced from NCES CCD, CRDC, and F-33 (federal records, not a quality verdict). How we source and compute this.
Source: National Center for Education Statistics Common Core of Data + CRDC + F-33 · 2024-25
How Alton Middle School compares
Alton Middle School on the metrics families compare, against Illinois and U.S. means.
| Metric | This school | vs Illinois | Illinois avg | U.S. avg |
|---|---|---|---|---|
| Students per teacher | 13.1:1 | ▼ 6% | 14:1 | 15.7:1 |
| Enrollment | 1,220 | top 5% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
13.1:1
Leaner classes than 66% of US schools, among the more generously staffed nationally.
1,220
Bigger than 94% of US schools by enrollment, a large campus nationally.
Equity indicators (what these measure)
Staffing depth
13.1:1
students per teacher
- 6% below state mean
Top 44% in Illinois - lower ratio than 56% of state schools
Close to the 15:1 benchmark most often cited for individualized attention.
Engagement
56.6%
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
$14,490
per pupil, district-wide
- below Illinois avg of $17,042
Somewhat 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
276
in-school suspensions + 193 out-of-school
Suspension rate: 22.6 per 100 students. Combined in-school and out-of-school rate: 38.4 per 100 students. Reported via the Civil Rights Data Collection. Includes 7 expulsions.
Overview
- Common Core of Data (June 2026): enrollment, staffing, and the student-teacher ratio above.
- Civil Rights Data Collection: discipline counts and program access (AP, gifted, special education).
- F-33 School District Finance Survey: the district-wide per-pupil spending figures below.
Three separate federal collections, each on its own reporting cadence - which is why this school's numbers line up on a consistent basis against every other school and state on this site, rather than mixing figures pulled from different survey years.
Student demographics
White 51.5%
African American 29.0%
Two or More 14.9%
Hispanic or Latino 3.6%
Asian 0.8%
American Indian / Alaska Native 0.1%
Largest group: White at 51.5% of enrollment.
Student-body diversity index 62.7/100
Simpson diversity index - at 62.7, Alton Middle School is more mixed than the Illinois school average of 38.9.
Programs
Gifted & talented Yes
Funding & spending
District-wide per-pupil expenditure for Alton Cusd 11, which includes Alton Middle School.
$14,490
Per student
-15%
vs Illinois
Avg $17,042
-13%
vs U.S.
Avg $16,593
Revenue mix
Local 43.9%
State 40.6%
Federal 15.5%
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.
How Alton Middle School Compares to District-Mates
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Alton High School | Larger | No free-lunch data | Higher S:T ratio |
| North Elementary School | Smaller | No free-lunch data | Higher S:T ratio |
| East Elementary School | Smaller | No free-lunch data | Similar S:T ratio |
| West Elementary School | Smaller | No free-lunch data | Similar S:T ratio |
| Lewis & Clark Elem School | Smaller | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Alton Middle School's own figures; each column derives from NCES Common Core of Data.
Other Schools in This District
- Enrollment
- 1,823
- Students per teacher
- 16.1:1
- Resource Index
- 38/100
- Enrollment
- 549
- Students per teacher
- 15.3:1
- Resource Index
- 23/100
- Enrollment
- 415
- Students per teacher
- 13.4:1
- Resource Index
- 25/100
- Enrollment
- 407
- Students per teacher
- 13.6:1
- Resource Index
- 39/100
- Enrollment
- 251
- Students per teacher
- 12.6:1
- Resource Index
- 27/100
Similar middle schools statewide
Matched by enrollment size and by staffing ratio across all of Illinois, not just this city - a different peer set than the local comparisons above.
Similar enrollment (~1,220 students)
Next steps
Verify locally before acting on Alton Middle School's federal record.
- Compare Alton Middle School against another school. Compare schools
- Alton Cusd 11's spending and staffing shape this school. District profile
- Confirm current enrollment and boundaries with the school. Choosing guide
Federal record (CCD 2024-25, CRDC 2021-22) - PlainSchools assigns no subjective rating; the composite quality score is a transparent, reproducible index computed from this cited federal data.
Frequently asked questions about Alton Middle School
How many students attend Alton Middle School?
Alton Middle School has 1,220 students enrolled. It is a middle school in Alton, IL.
What is the student-teacher ratio at Alton Middle School?
The student-teacher ratio at Alton Middle School is 13.1:1, which is 6% lower than the Illinois average of 14:1 and 17% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
What is the racial and ethnic makeup of Alton Middle School?
The largest demographic group at Alton Middle School is White at 51.5% of enrollment, in Alton, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 62.7/100.
What is the Resource Investment Index for Alton Middle School?
Alton Middle School has a Resource Investment Index of 39/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
How does Alton Middle School rank among public schools in Alton?
By Resource Investment Index, Alton Middle School ranks #1 of 6 public schools in Alton, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all public schools in Alton on the city page.
Is Alton Middle School a good school?
Alton Middle School earns 39/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also one of the largest schools in Illinois. This is a resource snapshot, not an academic rating; see the Resource Investment Index question above for what the number does and doesn't measure.
What other schools are in Alton Cusd 11?
Besides Alton Middle School, Alton Cusd 11 also operates Alton High School (1,823 students), North Elementary School (549 students), and East Elementary School (415 students). See the Alton Cusd 11 district page for the complete list.
Related tools
Every figure on PlainSchools is rendered directly from the source NCES, CRDC and F-33 federal records, no number is typed in by an editor. Each school's figures reflect its most recent NCES/CRDC submission on file. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of June 2026.