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Tri-C Elementary School
School pathway
Test scores
IAR + ISA 2024-25 . % Proficient (Levels 4-5)What this means: On the IAR + ISA, Illinois's statewide test, about 69 of every 100 students at this school read and write at grade level and about 71 of 100 do math at grade level. Across all Illinois schools, those numbers are about 51 and 38. Reading and writing scores are up about 15 points since 2023, while math scores are up about 17 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 65% of students here test proficient in math and reading, well above the roughly 46% typical for Illinois schools with a similar share of low-income students. BeatsExpectations ranks schools against others at the same poverty level, not by raw scores, so a school can post high scores and still fall short of its prediction, or post lower scores and still beat it. This school clears its prediction by about 18 points, placing it in Illinois's top 10%.
7-year change
SY 2017-18 vs SY 2024-25About Tri-C Elementary School
Located at 1405 W Grand Ave, in Carterville, Illinois, Tri-C Elementary School is a heavily attended elementary-level community that enrolls 650 students (grades K through 3), overseen by Carterville CUSD 5. That puts it 71% larger than the typical public school in Illinois, which averages around 381 students.
Within Carterville CUSD 5, which oversees 4 schools and 2,162 students, Tri-C Elementary School is one campus in the system.
Looking at the student body, Tri-C Elementary School shows that 82% of students identify as White, making the school strongly White-majority. Beyond that, the school logs 6% multiracial, 5% Hispanic, 4% Black, 3% Asian.
On the income-and-resources front, The school currently runs with 46 full-time-equivalent teachers, for a student-teacher ratio near 14.1:1. The state averages about 13.9:1, putting this campus right in line with peers. Roughly 44% of students at Tri-C Elementary School qualify for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator. That share is noticeably below Williamson County's rate of about 54%.
After controlling for student poverty, Tri-C Elementary School ranks in the top 10% of Illinois public schools. The BeatsExpectations model, a per-state regression of composite proficiency on FRL share, predicts schools with this student profile to land around 46.1%; Tri-C Elementary School posts 64.6%, +18.5 points above that line.
In the broader community, the surrounding county (Williamson County) records that the typical household earns roughly $65,604 per year, about 26% of the adult population holds a bachelor's degree or above, and census figures put the poverty rate at about 10%. In all, Williamson County runs 26 public schools (combined enrollment of about 9,700 students), of which Tri-C Elementary School is one.
The closest other public school is Carterville High School, roughly 0.2 miles away. 5 of the 8 nearest public schools sit inside a five-mile radius. Among the 8 schools in that immediate cluster with test data (this one included), Tri-C Elementary School ranks 2nd on composite proficiency, higher than the local average of 49.0%.
The school occupies a small-town site.
Five-year trend. Tri-C Elementary School's enrollment has decreased 6% since 2018, when it stood at 695 (now 650). The student-to-teacher ratio pulled in from 15.5:1 in 2018 to 14.1:1 today.
On allk12, members of the Tri-C Elementary School community share and discuss enrollment questions, classroom assignments, and PTA news. Members of the school community can share what they know.
Williamson County at a glance
View full county profileQuick facts
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