Summary:
The six elementary schools in zip code 20853 (Rockville, MD) are all part of the highly-rated Montgomery County Public Schools district, serving grades Pre-K or K through 5th with enrollments ranging from 332 to 621 students.
There is a clear performance gap between the top and bottom schools in this area. Cashell Elementary is the standout top performer, ranking in the 90th percentile statewide with 67.1% math proficiency and the lowest chronic absenteeism rate (12.4%). In contrast, Brookhaven Elementary is the lowest-ranked school (39th percentile), with math proficiency at just 28.4% and the highest free/reduced lunch rate (60.78%). Lucy V. Barnsley Elementary is a consistent high achiever, boasting the highest ELA proficiency in the zip code (64.6%) despite having the largest enrollment (621 students) and highest student-teacher ratio (13.5:1). Flower Valley Elementary achieves middle-of-the-pack results while spending the least per student ($18,965), while Rock Creek Valley Elementary spends significantly more ($27,276) with a lower student-teacher ratio (9.4:1) but only slightly better test scores.
A key takeaway is that higher spending does not guarantee better performance, as Wheaton Woods Elementary and Brookhaven have the second and third highest spending per student but are the bottom two performers. The socioeconomic-achievement gap is pronounced, with schools having lower free/reduced lunch rates (Cashell at 28.24%, Flower Valley at 29.96%) outperforming those with higher rates (Wheaton Woods at 64.75%, Brookhaven at 60.78%). On a positive note, chronic absenteeism across all six schools is below the district average of 22.6%, making attendance a relative strength for the 20853 area.
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