Centennial School

Centennial School is an elementary-level community of medium-sized scale in Orland Park, Illinois, one of the schools within Orland SD 135, instructing 392 students in grades pre-K through 2.

Within Orland SD 135, which oversees 10 schools and 5,186 students, Centennial School is one campus in the system.

In terms of who attends, Centennial School logs that the largest single group is White, at 76% of enrollment. Beyond that, the school logs 10% Hispanic, 5% Black, 5% multiracial, 4% Asian. That is meaningfully more White than the county at large, where the share is closer to 44%.

Looking at the economic backdrop, Staff filings list 36 full-time-equivalent teachers, which works out to roughly 10.9:1 students per teacher. That figure is tighter than the state norm's 13.9:1 average.

In the surrounding community, ACS estimates for Cook County put median household earnings sit near $83,498, 43% of adults hold a bachelor's degree or higher, and the poverty rate sits near 10%. In all, Cook County runs 1406 public schools (combined enrollment of about 697,934 students), of which Centennial School is one.

Orland Park Elem School is the nearest neighboring public school, about 1.8 miles from this campus. Counting just inside five miles, 8 other public schools cluster around Centennial School.

Geographically, the school is in a bedroom-community area.

Trend over the last 7 years. Looking back 7 years, enrollment at Centennial School has decreased 19%, going from 482 students in 2018 to 392 in 2025. White enrollment moved from 80% to 76% across the same window. Class-load math has tightened: from 15.2:1 in 2018 to 10.9:1 in 2025.

Inside the community feed, posts here usually surface around science fair prep, picture-day reminders, and bus-route questions. Anyone with firsthand experience at this school can post or comment.