C I Johnson Elem 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 64 of every 100 students at this school read and write at grade level and about 55 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 24 points since 2023, while math scores are up about 12 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 58% of students here test proficient in math and reading, well above the roughly 38% 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 20 points, placing it in Illinois's top 10%.
7-year change
SY 2017-18 vs SY 2024-25About C I Johnson Elem School
C I Johnson Elem School is an elementary-level community of close-knit scale in Aurora, Illinois, part of Aurora East USD 131, teacheing 269 students in grades 3 through 5. By comparison, Illinois's public schools average about 381 students each, so C I Johnson Elem School sits 29% smaller than that benchmark.
Within Aurora East USD 131, which oversees 18 schools and 12,187 students, C I Johnson Elem School is one campus in the system.
In terms of who attends, C I Johnson Elem School lists that 84% of students identify as Hispanic, making the school strongly Hispanic-majority. The remainder breaks down as 7% White, 6% Black. That is meaningfully more Hispanic than the county at large, where the share is closer to 33%.
On the income-and-resources front, On paper, C I Johnson Elem School has 16 full-time-equivalent teachers, translating to a class-load average of around 16.8:1. The state averages around 13.9:1, so this campus is higher than the state norm typical. About 58% of enrolled students meet the income threshold for free or reduced-price lunch, which schools and policymakers use as a rough income-mix signal. By comparison, Kane County runs at roughly 48%, so the school's eligibility rate is meaningfully above the surrounding baseline.
Adjusting for the school's free-and-reduced-lunch share, C I Johnson Elem School sits in the top 10% of Illinois schools after the BeatsExpectations adjustment. Predicted proficiency for the school's FRL share is roughly 38.0%; actual is 58.4%, +20.4 points clear of the demographic baseline.
In the surrounding community, the surrounding county (Kane County) shows that the typical household earns roughly $103,163 per year, about 38% of the adult population holds a bachelor's degree or above, and roughly 6% of residents live below the federal poverty line. C I Johnson Elem School is one of 167 public schools in Kane County (combined enrollment of about 87,252 students).
Nearest neighbor: Henry W Cowherd Middle School, around 0.6 miles off. Within five miles, there are 8 other public schools. Among the 9 schools in that immediate cluster with test data (this one included), C I Johnson Elem School ranks 5th on composite proficiency, higher than the local average of 41.6%.
The school occupies a residential site.
Over the past 7-year window. C I Johnson Elem School's enrollment has stayed largely flat since 2018, when it stood at 270 (now 269). White enrollment moved from 3% to 7% across the same window. Class-load math has rose: from 13.2:1 in 2018 to 16.8:1 in 2025.
On allk12, posts here usually surface around school events, parent volunteer needs, and clubs. Parents, students, alumni, and staff are welcome to weigh in.
Kane County at a glance
View full county profileQuick facts
Related schools
- East High SchoolHigh · 4,020 students
- Henry W Cowherd Middle SchoolMiddle · 807 students
- C F Simmons Middle SchoolMiddle · 792 students
- K D Waldo Middle SchoolMiddle · 729 students
- Olney C Allen Elem SchoolElementary · 712 students
- C M Bardwell Elem SchoolElementary · 679 students
- East High SchoolHigh · 4,020 students
- West Aurora High SchoolHigh · 3,641 students
- Waubonsie Valley High SchoolHigh · 2,849 students
- Metea Valley High SchoolHigh · 2,766 students
- Francis Granger Middle SchoolMiddle · 1,011 students
- Fischer Middle SchoolMiddle · 861 students
- Henry W Cowherd Middle School0.6 mi · 807
- Oak Park Elem School0.9 mi · 353
- Nancy Young Elementary School0.9 mi · 574
- Edna Rollins Elem School1.3 mi · 508
- C F Simmons Middle School1.3 mi · 792
- Reba O Steck Elementary School1.3 mi · 669