Millbrook Junior High 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 83 of every 100 students at this school read and write at grade level and about 33 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 20 points since 2023, while math scores are up about 8 points.
BeatsExpectations
Demographically-adjusted score · methodologyWhat this means: About 56% of students here test proficient in math and reading, compared with the roughly 57% typical for Illinois schools with a similar share of low-income students. BeatsExpectations measures results against demographically similar schools rather than by raw scores, and this school falls within the typical range, neither among Illinois's top nor bottom 10%.
7-year change
SY 2017-18 vs SY 2024-25About Millbrook Junior High School
Millbrook Junior High School is a micro-enrollment intermediate school in Newark, Illinois, one of the schools within Newark CCSD 66. The school teaches 89 students in grades 5 through 8. By comparison, Illinois's public schools average about 462 students each, so Millbrook Junior High School sits 81% smaller than that benchmark.
Newark CCSD 66 runs 2 schools in total, collectively educating 205 students. Millbrook Junior High School is one of those campuses.
Demographically, Millbrook Junior High School shows that White students make up the majority at 78%. Other groups include 17% Hispanic, 4% multiracial. That is meaningfully more White than the county at large, where the share is closer to 65%.
Looking at school resources, Millbrook Junior High School lists 8 full-time-equivalent teachers, putting the student-to-teacher ratio at about 10.8:1. The state averages around 13.0:1, so this campus is tighter than the state norm typical. Around 25% of the student body qualifies for free or reduced-price meals, a number frequently used as a low-income enrollment indicator.
On a demographically-adjusted basis, Millbrook Junior High School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 57.2%; this one delivers 56.4%.
In the surrounding community, ACS estimates for Kendall County put median household income runs about $111,601, 37% of adults hold a bachelor's degree or higher, and roughly 5% of residents live below the federal poverty line. Across Kendall County's 50 public schools (combined enrollment of about 29,773 students), Millbrook Junior High School is one campus in the mix.
The closest other public school is Newark Elem School, roughly 4.0 miles away. Within five miles, there are 8 other public schools. Ranking that nearby cluster on reported proficiency puts Millbrook Junior High School at 3rd of 9; the average score across the group is 44.8%.
Millbrook Junior High School operates from an outlying location.
Over the past 7-year window. Millbrook Junior High School's enrollment has shrank 26% since 2018, when it stood at 121 (now 89). White enrollment moved from 88% to 78% across the same window. Class-load math has pulled in: from 20.2:1 in 2018 to 10.8:1 in 2025.
Inside the community feed, members of the Millbrook Junior High School community share and discuss fundraisers, lost-and-found posts, and report-card season. Contributors range from current parents to recent graduates and teachers.
Kendall County at a glance
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Related schools
- Newark Comm High SchoolHigh · 175 students
- Lisbon Grade SchoolElementary · 121 students
- Newark Elem SchoolElementary · 116 students
- Lisbon CCSD 90Elementary
- Newark CCSD 66Elementary
- Newark CHSD 18Elementary
- Newark Elem School4.0 mi · 116
- Newark Comm High School4.0 mi · 175
- Centennial Elem School4.1 mi · 351
- Plano Middle School4.2 mi · 358
- Sandwich Community High School4.3 mi · 560
- Lynn G Haskin Elementary School4.4 mi · 226