Enrollment
1,777
Illinois · 2024-25 NCES data
High school (grades 9-12) · Chicago, IL
Federal NCES profile for Mather High School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 52/100.
The verdict
Mather High School earns 52/100 on the Resource Investment Index, with class sizes near the Illinois median. It is also one of the largest schools in Illinois.
Mather High School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Mather High School ranks #38 of 130 high schools in Chicago, IL.
NCES ID 170993000977 Verify on NCES CCD record →
Enrollment
1,777
Illinois · 2024-25 NCES data
Teachers (FTE)
125.0
Federal CCD staff survey
Students per teacher
14:1
vs 14:1 Illinois avg
+0% vs state
How Mather High School compares with Illinois and U.S. medians
At or below state median
14:1 - 0.0 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Mather High School is a large high school in Chicago, Illinois, enrolling 1,777 students.
At 14:1, 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 97% of state schools at 1,777 students.
Its Resource Investment Index sits near the middle of the pack among 3,845 scored Illinois schools.
Its student body is led by Hispanic or Latino (50%) and Asian (21%), more mixed than most schools in the state (diversity index 67/100).
On the academic-pipeline side it reports 19 Advanced Placement courses.
Counselor coverage runs a bit thin, about 296 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
The surrounding City of Chicago Sd 299 spends $21,050 per pupil, 24% above the Illinois average, a better-resourced district than most.
Its district draws 17.4% of revenue from federal sources, an above-typical federal share that tends to track a higher-need student population.
The federal civil-rights collection also records 1 expulsion at this campus for 2021-22.
Among Chicago's high schools, it stands alongside Curie Metropolitan High School (3,099 students): Mather High School is smaller than that campus by headcount and runs leaner classes (14:1 vs 16.5:1).
City of Chicago Sd 299 also operates Lane Technical High School (4,604 students) and Taft High School (4,487 students) alongside Mather High 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
Mather High 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 | 14:1 | ▼ 0% | 14:1 | 15.7:1 |
| Enrollment | 1,777 | top 3% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: Hispanic or Latino at 49.6% of enrollment.
Simpson diversity index - at 67.2, Mather High School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for City of Chicago Sd 299, which includes Mather High School.
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.
| School | Enrollment | Economic Profile | Student-Teacher Ratio |
|---|---|---|---|
| Lane Technical High School | Larger | No free-lunch data | Higher S:T ratio |
| Taft High School | Larger | No free-lunch data | Higher S:T ratio |
| Curie Metropolitan High School | Larger | No free-lunch data | Higher S:T ratio |
| Kenwood Academy High School | Larger | No free-lunch data | Higher S:T ratio |
| Young Magnet High School | Larger | No free-lunch data | Higher S:T ratio |
Comparisons are relative to Mather High School's own figures; each column derives from NCES Common Core of Data.
6 comparable high schools (grades 9-12) serving the same city.
Next steps
Verify locally before acting on Mather High School's federal record.
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.
Mather High School has 1,777 students enrolled. It is a high school in Chicago, IL.
The student-teacher ratio at Mather High School is 14:1, which is 0% higher than the Illinois average of 14:1 and 11% lower than the national average of 15.7:1.
The largest demographic group at Mather High School is Hispanic or Latino at 49.6% of enrollment, in Chicago, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 67.2/100.
Mather High School has a Resource Investment Index of 52/100 (higher reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, AP course offerings, counselor availability. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Mather High School ranks #38 of 130 high schools in Chicago, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all high schools in Chicago on the city page.
Mather High School earns 52/100 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.
Besides Mather High School, City of Chicago Sd 299 also operates Lane Technical High School (4,604 students), Taft High School (4,487 students), and Curie Metropolitan High School (3,099 students). See the City of Chicago Sd 299 district page for the complete list.