Enrollment
272
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Chicago, IL
Federal NCES profile for Tanner Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 33/100.
The verdict
Tanner Elem School earns 33/100 on the Resource Investment Index, with class sizes smaller than 79% of Illinois schools.
Tanner Elem School has class sizes smaller than 79% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Tanner Elem School ranks #139 of 394 schools in Chicago, IL.
NCES ID 170993001044 Verify on NCES CCD record →
Enrollment
272
Illinois · 2024-25 NCES data
Teachers (FTE)
24.0
Federal CCD staff survey
Students per teacher
11.3:1
vs 14:1 Illinois avg
-19% vs state
How Tanner Elem School compares with Illinois and U.S. medians
Smaller classes than state median
11.3:1 - 2.7 below the Illinois state median of 14:1, indicating smaller average class loads than typical schools in the state.
Tanner Elem School is a mid-sized combined-grade school in Chicago, Illinois, enrolling 272 students.
Class sizes run a bit leaner than typical: 11.3:1 puts it in the smaller third of Illinois schools by student-teacher ratio.
Enrollment of 272 puts it in the smaller third of Illinois schools by headcount.
Its Resource Investment Index lands in the lower third of 3,845 scored Illinois schools.
Its student body is predominantly African American (86% of enrollment) (diversity index 24/100).
Counselor coverage runs a bit thin, about 272 students per counselor, somewhat past the ASCA-recommended 250:1 benchmark.
Chronic absenteeism is elevated: 72.1% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).
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.
Discipline events run high: 85 in- and out-of-school suspensions were reported for 272 students in the 2021-22 Civil Rights Data Collection.
Among Chicago's public schools, it stands alongside Lane Technical High School (4,604 students): Tanner Elem School is smaller than that campus by headcount and runs leaner classes (11.3:1 vs 17.8:1).
City of Chicago Sd 299 also operates Lane Technical High School (4,604 students) and Taft High School (4,487 students) alongside Tanner Elem 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
Tanner Elem 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 | 11.3:1 | ▼ 19% | 14:1 | 15.7:1 |
| Enrollment | 272 | top 69% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
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.
Largest group: African American at 86.4% of enrollment.
Simpson diversity index - at 23.8, Tanner Elem School is less mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for City of Chicago Sd 299, which includes Tanner Elem 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 Tanner Elem School's own figures; each column derives from NCES Common Core of Data.
6 comparable other schools (grades Mixed) serving the same city.
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.
Next steps
Verify locally before acting on Tanner Elem 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.
Tanner Elem School has 272 students enrolled. It is a public school in Chicago, IL.
The student-teacher ratio at Tanner Elem School is 11.3:1, which is 19% lower than the Illinois average of 14:1 and 28% lower than the national average of 15.7:1. Lower ratios generally mean more individual attention per student.
The largest demographic group at Tanner Elem School is African American at 86.4% of enrollment, in Chicago, IL.
Tanner Elem School has a Resource Investment Index of 33/100 (typical reported resources relative to schools nationally) based on 4 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).
By Resource Investment Index, Tanner Elem School ranks #139 of 394 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 schools in Chicago on the city page.
Tanner Elem School earns 33/100 on the Resource Investment Index, with class sizes smaller than 79% of Illinois schools. 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 Tanner Elem 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.
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.
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PlainSchools, “Tanner Elem School, Chicago IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of June 2026. https://plainschools.com/schools/tanner-elem-school-il
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