Enrollment
275
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Maple Park, IL
Federal NCES profile for Lily Lake Grade School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 47/100.
The verdict
Lily Lake Grade School earns 47/100 on the Resource Investment Index, with class sizes larger than 81% of Illinois schools.
Lily Lake Grade School has class sizes larger than 81% of Illinois schools. Computed live against every Illinois school reporting to NCES.
NCES ID 170783000399 Verify on NCES CCD record →
Enrollment
275
Illinois · 2024-25 NCES data
Teachers (FTE)
17.0
Federal CCD staff survey
Students per teacher
16.2:1
vs 14:1 Illinois avg
+16% vs state
How Lily Lake Grade School compares with Illinois and U.S. medians
Slightly above state median
16.2:1 - 2.2 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Lily Lake Grade School's enrollment sits away from the most extreme size bands, but its reported student-teacher ratio is heavier than most Illinois schools. That isolates staffing load as a more useful concern than raw campus size. A high ratio does not establish weak teaching or outcomes, yet it can indicate less adult capacity per enrolled student. The remaining federal indicators show whether support staffing and program access offset that pressure.
Lily Lake Grade School's district reports $14,069 in per-pupil expenditure, at least 15% below the Illinois average of $17,042. That district-wide constraint gives the campus-level support fields added meaning: counselor loads, specialist staffing, and program access are being reported within a comparatively lean spending environment. F-33 does not publish this school's own budget, so the comparison describes district context rather than dollars assigned to this building.
Lily Lake Grade School is a mid-sized combined-grade school in Maple Park, Illinois, enrolling 275 students.
Class loads run somewhat heavier than typical: 16.2:1 puts it in the larger third of Illinois schools by student-teacher ratio.
Enrollment of 275 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 led by White (77%) and Hispanic or Latino (18%) (diversity index 37/100).
10.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
Central Cusd 301 also operates Central High School (1,575 students) and Prairie Knolls Middle Sch (770 students) alongside Lily Lake Grade 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
Lily Lake Grade 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 | 16.2:1 | ▲ 16% | 14:1 | 15.7:1 |
| Enrollment | 275 | top 69% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: White at 77.0% of enrollment.
Simpson diversity index - at 37.4, Lily Lake Grade School is about as mixed as the Illinois school average of 38.9.
District-wide per-pupil expenditure for Central Cusd 301, which includes Lily Lake Grade 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 |
|---|---|---|---|
| Central High School | Larger | No free-lunch data | Higher S:T ratio |
| Prairie Knolls Middle Sch | Larger | No free-lunch data | Similar S:T ratio |
| Country Trails Elem | Larger | No free-lunch data | Higher S:T ratio |
| Howard B Thomas Grade School | Larger | No free-lunch data | Higher S:T ratio |
| Prairie View Grade School | Larger | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Lily Lake Grade School's own figures; each column derives from NCES Common Core of Data.
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 Lily Lake Grade 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.
Lily Lake Grade School has 275 students enrolled. It is a public school in Maple Park, IL.
The student-teacher ratio at Lily Lake Grade School is 16.2:1, which is 16% higher than the Illinois average of 14:1 and 3% higher than the national average of 15.7:1.
The largest demographic group at Lily Lake Grade School is White at 77.0% of enrollment, in Maple Park, IL.
Lily Lake Grade School has a Resource Investment Index of 47/100 (typical reported resources relative to schools nationally) based on 3 factors: student-teacher ratio, gifted-program reporting, chronic absenteeism. Not a test-score or academic measure (national median ~41/100, see methodology).
Besides Lily Lake Grade School, Central Cusd 301 also operates Central High School (1,575 students), Prairie Knolls Middle Sch (770 students), and Country Trails Elem (751 students). See the Central Cusd 301 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 July 2026.
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PlainSchools, “Lily Lake Grade School, Maple Park IL.” Compiled from NCES Common Core of Data, Civil Rights Data Collection, and the NCES F-33 finance survey; data as of July 2026. https://plainschools.com/schools/lily-lake-grade-school-il
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