High school (grades 9-12) · Gardner, IL

Gardner-South Wilmington Twp H S

Federal NCES profile for Gardner-South Wilmington Twp H S, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 41/100.

2024-25 NCES dataHigh school (grades 9-12)NCES 171626001942
0/100100/10041/100
👥 S:T ratio
68
📚 AP courses
10
🌟 Gifted program
30
🎓 Counselors
69
📋 Attendance
27
Scored 0–100 from federal NCES and CRDC indicators, resource allocation, not test scores. Full methodology →

The verdict

Gardner-South Wilmington Twp H S earns 41/100 on the Resource Investment Index, with class sizes smaller than 97% of Illinois schools. It is also less racially and ethnically mixed than most Illinois schools.

41
Resource Index · Typical
8.1:1
small classes for Illinois
154
students enrolled

Gardner-South Wilmington Twp H S has class sizes smaller than 97% of Illinois schools. Computed live against every Illinois school reporting to NCES.

Enrollment

154

Illinois · 2024-25 NCES data

Teachers (FTE)

19.0

Federal CCD staff survey

Students per teacher

8.1:1

vs 14:1 Illinois avg

-42% vs state

Student-teacher ratio in context

How Gardner-South Wilmington Twp H S compares with Illinois and U.S. medians

Smaller classes than state median
0:135:18.1:1

Source: NCES Common Core of Data As of 2024-25 federal staff survey Total enrollment ÷ full-time-equivalent classroom teachers

What stands out at Gardner-South Wilmington Twp H S

Gardner-South Wilmington Twp H S is a small high school in Gardner, Illinois, enrolling 154 students.

Classes run notably small here: at 8.1:1, Gardner-South Wilmington Twp H S is leaner than roughly 97% of Illinois schools and 42% under the state's 14:1 norm, more adult attention per pupil than most peers.

Enrollment of 154 puts it in the smaller third of Illinois schools by headcount.

Its Resource Investment Index lands in the upper third of 3,845 scored Illinois schools.

Its student body is predominantly White (93% of enrollment), among the less diverse in the state (diversity index 13/100).

No Advanced Placement courses are reported for this campus in the federal data.

Counselor coverage is strong, about 154 students per counselor, inside the American School Counselor Association's recommended 250:1.

Chronic absenteeism is elevated: 29.2% of students missed 10% or more of school days (2021-22 Civil Rights Data Collection).

The surrounding Gardner S Wilmington Twp Hsd 73 spends $22,442 per pupil, 32% above the Illinois average, a better-resourced district than most.

Gardner S Wilmington Twp Hsd 73 operates only this one school, so Gardner-South Wilmington Twp H S has no district-mates to compare against locally.

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 Gardner-South Wilmington Twp H S compares

Gardner-South Wilmington Twp H S on the metrics families compare, against Illinois and U.S. means.

Metric This school vs Illinois Illinois avg U.S. avg
Students per teacher 8.1:1 ▼ 42% 14:1 15.7:1
Enrollment 154 top 89% - -

Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25

8.1:1
Leaner classes than 95% of US schools, among the more generously staffed nationally.
154
Bigger than 15% of US schools by enrollment, a small campus.

Equity indicators (what these measure)

Staffing depth
8.1:1
students per teacher - 42% below state mean
Top 3% in Illinois - lower ratio than 97% of state schools
Well under the widely cited 15:1 individualized-attention benchmark, among the leaner class loads nationally.
Engagement
29.2%
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
$22,442
per pupil, district-wide - above Illinois avg of $17,042
Well above the U.S. public-school average, reflecting substantially higher local or state investment per enrolled student.
Support staff
Counselors1.0 FTE
Per 154 students, the combined health-and-guidance staffing load for this school.
Discipline context
0
in-school suspensions + 0 out-of-school
Suspension rate: 0.0 per 100 students. Combined in-school and out-of-school rate: 0.0 per 100 students. Reported via the Civil Rights Data Collection.

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 92.9%
Hispanic or Latino 6.5%
African American 0.6%

Largest group: White at 92.9% of enrollment.

Student-body diversity index 13.3/100

Simpson diversity index - at 13.3, Gardner-South Wilmington Twp H S is less mixed than the Illinois school average of 38.9.

Programs

AP program Not offered

Funding & spending

District-wide per-pupil expenditure for Gardner S Wilmington Twp Hsd 73, which includes Gardner-South Wilmington Twp H S.

$22,442
Per student
+32%
vs Illinois
Avg $17,042
+35%
vs U.S.
Avg $16,593
Revenue mix
Local 60.0%
State 35.8%
Federal 4.2%

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.

Similar high 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.

Next steps

Verify locally before acting on Gardner-South Wilmington Twp H S'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.

Frequently asked questions about Gardner-South Wilmington Twp H S

How many students attend Gardner-South Wilmington Twp H S?

Gardner-South Wilmington Twp H S has 154 students enrolled. It is a high school in Gardner, IL.

What is the student-teacher ratio at Gardner-South Wilmington Twp H S?

The student-teacher ratio at Gardner-South Wilmington Twp H S is 8.1:1, which is 42% lower than the Illinois average of 14:1 and 48% 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 Gardner-South Wilmington Twp H S?

The largest demographic group at Gardner-South Wilmington Twp H S is White at 92.9% of enrollment, in Gardner, IL.

What is the Resource Investment Index for Gardner-South Wilmington Twp H S?

Gardner-South Wilmington Twp H S has a Resource Investment Index of 41/100 (typical reported resources relative to schools nationally) based on 5 factors: student-teacher ratio, counselor availability, attendance rates. Not a test-score or academic measure (national median ~41/100, see methodology).

Is Gardner-South Wilmington Twp H S a good school?

Gardner-South Wilmington Twp H S earns 41/100 on the Resource Investment Index, with class sizes smaller than 97% of Illinois schools. It is also less racially and ethnically mixed than most 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.

What other schools are in Gardner S Wilmington Twp Hsd 73?

None reported; Gardner S Wilmington Twp Hsd 73 operates only Gardner-South Wilmington Twp H S as a public school district in NCES's records.

Source: National Center for Education Statistics (NCES) CCD + Public School Universe (2024-25), CRDC (2021-22), F-33 District Finance Survey (FY 2021-22) · 2024-25 Data as of the 2024-25 school year. Coverage from U.S. Department of Education NCES Common Core of Data. Varies by entity type; administrative districts and certain charter networks may report only a subset of fields.

All federal data sources used on this page

Full source list and how we compute each figure: methodology page.

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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.