Greenbriar Elem School

Greenbriar Elementary School serves 367 students in kindergarten through fifth grade in Northbrook, Illinois. It earns a composite score of 9.7 out of 10, placing it in the Exceptional tier — and the numbers behind that label carry real weight. Greenbriar ranks 15th out of 3,813 public schools statewide, and its academic score of 9.9 out of 10 reflects performance that outpaces every other public school in Illinois.

Growth scores of 9.4 out of 10 show students aren't just arriving at high levels — they're continuing to advance. The school runs a student-teacher ratio of 10.2 to 1, well below typical public elementary benchmarks, giving teachers meaningful contact time with each student. Among Illinois elementary schools specifically, Greenbriar holds the 13th spot out of 2,326 — a ranking that signals consistent, measurable academic output rather than a single strong year.

For families comparing options in Northbrook, Greenbriar sits 4th among the 11 schools in the district. Parents weighing academic performance as a primary factor will find it difficult to identify a stronger public elementary option in the state. The data points consistently in one direction: this is one of Illinois's top-performing elementary schools by nearly every available measure.