Enrollment
510
Illinois · 2024-25 NCES data
Other / mixed grade configuration · Buffalo Grove, IL
Federal NCES profile for Henry W Longfellow Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 60/100.
The verdict
Henry W Longfellow Elem School earns 60/100 on the Resource Investment Index, with class sizes larger than 79% of Illinois schools.
Henry W Longfellow Elem School has class sizes larger than 79% of Illinois schools. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Henry W Longfellow Elem School ranks #1 of 3 schools in Buffalo Grove, IL.
NCES ID 174221004236 Verify on NCES CCD record →
Enrollment
510
Illinois · 2024-25 NCES data
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
15.9:1
vs 14:1 Illinois avg
+14% vs state
How Henry W Longfellow Elem School compares with Illinois and U.S. medians
Slightly above state median
15.9:1 - 1.9 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Henry W Longfellow Elem School is a mid-sized combined-grade school in Buffalo Grove, Illinois, enrolling 510 students.
Class loads run somewhat heavier than typical: 15.9:1 puts it in the larger third of Illinois schools by student-teacher ratio.
Enrollment of 510 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index outscores 94% 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 (65%) and Asian (17%) (diversity index 54/100).
Counselor coverage is strong, about 196 students per counselor, inside the American School Counselor Association's recommended 250:1.
10.2% of students were chronically absent in the 2021-22 collection, in line with the post-pandemic national range.
The surrounding Wheeling Ccsd 21 spends $23,863 per pupil, 40% above the Illinois average, a better-resourced district than most.
Among Buffalo Grove's public schools, it stands alongside Joyce Kilmer Elem School (590 students): Henry W Longfellow Elem School is smaller than that campus by headcount and runs leaner classes (15.9:1 vs 16.9:1).
Wheeling Ccsd 21 also operates Cooper Middle School (732 students) and Jack London Middle School (628 students) alongside Henry W Longfellow 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
Henry W Longfellow 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 | 15.9:1 | ▲ 14% | 14:1 | 15.7:1 |
| Enrollment | 510 | top 29% | - | - |
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 64.5% of enrollment.
Simpson diversity index - at 54.0, Henry W Longfellow Elem School is more mixed than the Illinois school average of 38.9.
District-wide per-pupil expenditure for Wheeling Ccsd 21, which includes Henry W Longfellow 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 |
|---|---|---|---|
| Cooper Middle School | Larger | No free-lunch data | Similar S:T ratio |
| Jack London Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| Oliver W Holmes Middle School | Similar size | No free-lunch data | Lower S:T ratio |
| Eugene Field Elem School | Similar size | No free-lunch data | Similar S:T ratio |
| Joyce Kilmer Elem School | Similar size | No free-lunch data | Similar S:T ratio |
Comparisons are relative to Henry W Longfellow Elem School's own figures; each column derives from NCES Common Core of Data.
2 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 Henry W Longfellow 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.
Henry W Longfellow Elem School has 510 students enrolled. It is a public school in Buffalo Grove, IL.
The student-teacher ratio at Henry W Longfellow Elem School is 15.9:1, which is 14% higher than the Illinois average of 14:1 and 1% higher than the national average of 15.7:1.
The largest demographic group at Henry W Longfellow Elem School is White at 64.5% of enrollment, in Buffalo Grove, IL. Its student body is more racially and ethnically mixed than most US schools, with a diversity index of 54.0/100.
Henry W Longfellow Elem School has a Resource Investment Index of 60/100 (higher 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, Henry W Longfellow Elem School ranks #1 of 3 schools in Buffalo 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 Buffalo Grove on the city page.
Henry W Longfellow Elem School earns 60/100 on the Resource Investment Index, with class sizes larger 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 Henry W Longfellow Elem School, Wheeling Ccsd 21 also operates Cooper Middle School (732 students), Jack London Middle School (628 students), and Oliver W Holmes Middle School (615 students). See the Wheeling Ccsd 21 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.
Published by
PlainSchools Editorial
Independent public-data reference that compiles, verifies, and contextualizes official datasets. We do not accept compensation from entities we cover, and every dataset cites its originating public source.
Last updated:
PlainSchools, “Henry W Longfellow Elem School, Buffalo 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/henry-w-longfellow-elem-school-il
You are welcome to quote these figures with attribution to PlainSchools and the underlying source. The URL above is stable.