Enrollment
501
Illinois · 2024-25 NCES data
Elementary school (grades K-5) · Barrington, IL
Federal NCES profile for Arnett C Lines Elem School, including enrollment, faculty, free-lunch eligibility, demographics, and resource indicators - Resource Investment Index 64/100.
The verdict
Arnett C Lines Elem School earns 64/100 on the Resource Investment Index, with class sizes near the Illinois median.
Arnett C Lines Elem School has class sizes near the Illinois median. Computed live against every Illinois school reporting to NCES.
By Resource Investment Index, Arnett C Lines Elem School ranks #1 of 5 elementary schools in Barrington, IL.
NCES ID 170505000195 Verify on NCES CCD record →
Enrollment
501
Illinois · 2024-25 NCES data
Teachers (FTE)
32.0
Federal CCD staff survey
Students per teacher
14.9:1
vs 14:1 Illinois avg
+6% vs state
How Arnett C Lines Elem School compares with Illinois and U.S. medians
Slightly above state median
14.9:1 - 0.9 above the Illinois state median of 14:1, indicating larger average class loads than typical schools in the state.
Arnett C Lines Elem School is a mid-sized elementary school in Barrington, Illinois, enrolling 501 students.
Class loads run somewhat heavier than typical: 14.9:1 puts it in the larger third of Illinois schools by student-teacher ratio.
Enrollment of 501 puts it in the larger third of Illinois schools by headcount.
Its Resource Investment Index outscores 97% 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 (13%) (diversity index 37/100).
Attendance holds up well here: only 7.0% of students were chronically absent, below the typical post-pandemic national figure.
The surrounding Barrington Cusd 220 spends $22,783 per pupil, 34% above the Illinois average, a better-resourced district than most.
Among Barrington's elementary schools, it stands alongside Grove Avenue Elem School (511 students): Arnett C Lines Elem School is smaller than that campus by headcount and runs heavier classes (14.9:1 vs 14.1:1).
Barrington Cusd 220 also operates Barrington High School (2,718 students) and Barrington Mdle Sch- Prairie Cmps (980 students) alongside Arnett C Lines 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
Arnett C Lines 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 | 14.9:1 | ▲ 6% | 14:1 | 15.7:1 |
| Enrollment | 501 | top 30% | - | - |
Source: NCES Common Core of Data School-level CCD + state/national means from Public School Universe · 2024-25
Largest group: White at 78.0% of enrollment.
Simpson diversity index - at 37.1, Arnett C Lines Elem School is about as mixed as the Illinois school average of 38.9.
District-wide per-pupil expenditure for Barrington Cusd 220, which includes Arnett C Lines 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 |
|---|---|---|---|
| Barrington High School | Larger | No free-lunch data | Higher S:T ratio |
| Barrington Mdle Sch- Prairie Cmps | Larger | No free-lunch data | Lower S:T ratio |
| Barrington Middle Sch Station | Larger | No free-lunch data | Similar S:T ratio |
| Grove Avenue Elem School | Similar size | No free-lunch data | Similar S:T ratio |
| Roslyn Road Elem School | Similar size | No free-lunch data | Lower S:T ratio |
Comparisons are relative to Arnett C Lines Elem School's own figures; each column derives from NCES Common Core of Data.
4 comparable elementary schools (grades K-5) serving the same city.
Next steps
Verify locally before acting on Arnett C Lines 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.
Arnett C Lines Elem School has 501 students enrolled. It is an elementary school in Barrington, IL.
The student-teacher ratio at Arnett C Lines Elem School is 14.9:1, which is 6% higher than the Illinois average of 14:1 and 5% lower than the national average of 15.7:1.
The largest demographic group at Arnett C Lines Elem School is White at 78.0% of enrollment, in Barrington, IL.
Arnett C Lines Elem School has a Resource Investment Index of 64/100 (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, Arnett C Lines Elem School ranks #1 of 5 elementary schools in Barrington, IL. This compares federal resource and staffing data among local peers; it is not a test-score or academic ranking. See all elementary schools in Barrington on the city page.
Arnett C Lines Elem School earns 64/100 on the Resource Investment Index, with class sizes near the Illinois median. 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 Arnett C Lines Elem School, Barrington Cusd 220 also operates Barrington High School (2,718 students), Barrington Mdle Sch- Prairie Cmps (980 students), and Barrington Middle Sch Station (886 students). See the Barrington Cusd 220 district page for the complete list.