Enrollment
531
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Downers Grove, IL
Federal NCES profile for Lester Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 63/100.
The verdict
Lester Elem School earns 63/100 on the Resource Investment Index, with class sizes larger than 92% of Illinois schools.
Lester Elem School has class sizes larger than 92% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Lester Elem School ranks #5 of 11 schools in Downers Grove, IL.
NCES ID 171254001513 Verify on NCES CCD record →
Enrollment
531
Illinois · 2024-25 NCES data
Teachers (FTE)
29.0
Federal CCD staff survey
Students per teacher
18.3:1
vs 14:1 Illinois avg
+31% vs state
How Lester Elem School compares with Illinois and U.S. medians
Larger classes than state median
18.3:1 - 4.3 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Lester Elem School is a mid-sized combined-grade school in Downers Grove, Illinois, enrolling 531 students.
Class loads run heavy: 18.3:1 is larger than about 92% of Illinois schools and 31% above the 14:1 state mean, so each teacher carries more students than is typical.
Enrollment of 531 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index outscores 96% of the 3,845 Illinois schools with a score on record, a top-tier result on this measure.
Its student body is led by White (78%) and Hispanic or Latino (11%) (diversity index 38/100).
Attendance holds up well here: only 3.6% of students were chronically absent, below the typical post-pandemic national figure.
Among Downers Grove's public schools, it stands alongside Hillcrest Elem School (382 students): Lester Elem School is larger than that campus by headcount and runs heavier classes (18.3:1 vs 15.9:1).
Downers Grove Gsd 58 also operates Herrick Middle School (626 students) and O Neill Middle School (403 students) alongside Lester 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
Lester 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 | 18.3:1 | ▲ 31% | 14:1 | 15.7:1 |
| Enrollment | 531 | top 26% | - | - |
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: White at 77.7% of enrollment.
Simpson diversity index - at 37.9, Lester Elem School is about as mixed as the Illinois school average of 38.9.
District-wide per-pupil expenditure for Downers Grove Gsd 58, which includes Lester 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 |
|---|---|---|---|
| Herrick Middle School | Similar size | No free-lunch data | Similar S:T ratio |
| O Neill Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| Hillcrest Elem School | Smaller | No free-lunch data | Lower S:T ratio |
| Kingsley Elem School | Smaller | No free-lunch data | Lower S:T ratio |
| Highland Elem School | Smaller | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Lester 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 Lester 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.
Lester Elem School has 531 students enrolled. It is a public school in Downers Grove, IL.
The student-teacher ratio at Lester Elem School is 18.3:1, which is 31% higher than the Illinois average of 14:1 and 17% higher than the national average of 15.7:1.
The largest demographic group at Lester Elem School is White at 77.7% of enrollment, in Downers Grove, IL.
Lester Elem School has a Resource Investment Index of 63/100 (higher 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).
By Resource Investment Index, Lester Elem School ranks #5 of 11 schools in Downers Grove, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all schools in Downers Grove on the city page.
Lester Elem School earns 63/100 on the Resource Investment Index, with class sizes larger than 92% 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 Lester Elem School, Downers Grove Gsd 58 also operates Herrick Middle School (626 students), O Neill Middle School (403 students), and Hillcrest Elem School (382 students). See the Downers Grove Gsd 58 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, “Lester Elem School, Downers Grove 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/lester-elem-school-il
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