Three Oaks School

Three Oaks School is a middle-of-the-pack primary school in Cary, Illinois, part of Cary CCSD 26. The school serves 443 students in grades K through 5.

Cary CCSD 26 comprises 5 schools with combined enrollment of 2,372 students; Three Oaks School is among them.

Demographically, Three Oaks School records that the largest single group is White, at 63% of enrollment. Other groups include 31% Hispanic, 3% multiracial. That is noticeably less White than the county at large, where the share is closer to 80%.

In terms of school funding signals, Three Oaks School records 41 full-time-equivalent teachers, putting the student-to-teacher ratio at about 10.7:1. The state averages around 13.9:1, so this campus is tighter than the state norm typical. About 33% of enrolled students meet the income threshold for free or reduced-price lunch, a number frequently used as a low-income enrollment indicator.

With demographic context factored in, Three Oaks School sits in the middle band of the BeatsExpectations distribution. Schools with this campus's student mix typically land near 52.5%; this one delivers 52.1%.

Zooming out to the county, census data for McHenry County shows median household earnings sit near $104,802, about 35% of the adult population holds a bachelor's degree or above, and the poverty rate sits near 4%. Across McHenry County's 89 public schools (combined enrollment of about 50,123 students), Three Oaks School is one campus in the mix.

Nearest neighbor: Cary-Grove Community High School, around 0.6 miles off. Counting just inside five miles, 8 other public schools cluster around Three Oaks School. Ranking that nearby cluster on reported proficiency puts Three Oaks School at 4th of 8; the average score across the group is 51.9%.

Three Oaks School operates from a commuter-belt location.

Over the past 7-year window. Three Oaks School's enrollment has fell 24% since 2018, when it stood at 582 (now 443). Over the same period, the White share ticked up from 59% to 63%. Class-load math has fell: from 14.6:1 in 2018 to 10.7:1 in 2025.

On allk12, recent activity here tends to focus on fundraisers, lost-and-found posts, and report-card season. Posting is open to anyone connected to the school.