The top reported proficiency rate is 74% in Math. The lowest is 63% in Science.
Original Research by School Decision on River Valley School
River Valley School serves second and third grades in Lemont, a mixed-use village southwest of Chicago anchored by a historic downtown along the I&M Canal. The school enrolls a school-sized population for its grade band, with a student body that is predominantly white and draws from the broader Lemont-Bromberek district community.
On the most recent state assessment in spring 2025, third-grade students at River Valley showed solid proficiency in mathematics, with about three-quarters meeting or exceeding state standards. Performance in English language arts was notably lower, with roughly two-thirds of third graders proficient. The school's overall proficiency index places it in the top quartile of districts across Cook County. Science testing was last reported several years ago, so recent science data is not available; this reflects the limited testing windows for the younger grades that River Valley serves.
River Valley does not report free-or-reduced-price lunch counts or rates, nor does it provide enrollment data for students receiving special education services or identified as English learners. These gaps likely reflect the school's status as a small, early-elementary building; districts often do not break out demographic details at the school level for very small grade spans. A parent seeking information on support for students with learning differences or multilingual learners would benefit from reaching out directly to the school or district office.
The district itself has undergone significant change in recent years. In 2021, voters approved an operating tax increase for the first time in more than four decades, yielding substantial new revenue annually. That support enabled the district to reopen Central School in 2022-23 to accommodate growth and to implement full-day kindergarten district-wide, replacing a prior half-day model. These shifts signal ongoing investment and capacity-building in response to a growing community. Lemont itself has expanded steadily, with steady housing growth and new residential subdivisions, and the village is pursuing a downtown revitalization plan alongside the Metra Heritage Corridor transit access.
Housing values in the Lemont area have appreciated and remain moderately affordable relative to the broader Chicago region. The median listed home price in the area sits modestly below the state benchmark and well below the national benchmark, though mortgage rates and the current economic context affect monthly carrying costs. The area attracts families drawn to the village's historic character, proximity to Argonne National Laboratory and major employers, parks and forest preserves including Waterfall Glen, and growing school infrastructure.
Parents choosing River Valley should know that the school is limited to grades two and three, so it serves only a portion of a student's K-12 pathway. The district's full-day kindergarten and reopened elementary capacity reflect investment, though any parent considering the area should also evaluate the broader district's middle and high school offerings for continuity of schooling.
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