The top reported proficiency rate is 77% in Math. The lowest is 69% in Science.
Original Research by School Decision on Greenbrier Elem School
Greenbrier Elementary serves prekindergarten through fifth grade in Arlington Heights, a northwest Chicago suburb with an active downtown redevelopment focused on transit-oriented mixed-use growth and a diversified job base anchored by healthcare, corporate offices, and retail. The school sits within Arlington Heights SD 25, which in 2024-2025 launched full-day kindergarten across six elementary buildings, a structural change that replaced the prior half-day model and expanded classroom capacity district-wide.
The school enrolls a small population with a racial composition that skews toward white and Asian students, with smaller shares of Hispanic, Black, and Native Hawaiian students. Free and reduced price lunch status data was not available, limiting visibility into the economic profile of the student body. English learner and special education enrollment figures were also not reported. The student body is drawn from single-family residential neighborhoods surrounding the school.
On state assessments administered in 2024-2025, Greenbrier shows mixed performance across grade levels. In mathematics, students in fourth grade reached proficiency at a robust rate, while third grade proficiency was solid and fifth grade noticeably lower. English language arts results are more uneven: third grade proficiency was below the school's math performance in the same grade, fourth grade recovered to a stronger level, and fifth grade improved further. Fifth grade science proficiency matched fifth grade mathematics. These results reflect the school's position in the top quartile of proficiency among Cook County school districts on an overall proficiency index. However, a parent may want to look into the pattern of relative softness in third grade literacy and fifth grade mathematics, as both fall below school and county patterns, to understand whether these reflect teaching adjustments, student composition in those cohorts, or other factors.
State assessment scoring criteria changed in 2024-2025, making year-to-year comparison unreliable, so multi-year trends are not available. The school achieved full or near-full participation in all assessed grades, indicating strong test administration.
The school serves only kindergarten through fifth grade and does not serve the upper middle grades or high school, so graduation rate, chronic absenteeism, and secondary outcomes are not applicable. Attendance data, discipline information, and staffing details were not provided in available records.
Arlington Heights itself is characterized by a walkable downtown core anchored by a Metra commuter rail station, restaurants, shops, and the Metropolis Performing Arts Centre, alongside outlying car-dependent residential neighborhoods. The village operates more than fifty parks and recreation facilities and is home to major employers including Northwest Community Healthcare, United Airlines, Amazon, and Frito-Lay. Housing values in the area have risen modestly; median home prices and rental rates are substantially higher than state benchmarks, and the housing market shows moderate inventory and relatively balanced supply and demand. The community's growth trajectory is shaped by ongoing downtown redevelopment and the uncertain but proposed mixed-use transformation of the former Arlington Park racetrack site, a project the Chicago Bears Football Club acquired in 2023 with plans still in flux.
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