Cashell Elementary vs Rock Creek Valley Elementary
Cashell Elementary has a higher overall rating of 8.6/10 compared to 7.2/10. In math proficiency, Cashell Elementary leads at 97.5%.
Cashell Elementary
Rockville, MD
342 students
Rock Creek Valley Elementary
Rockville, MD
367 students
Ratings Comparison
| Metric | Cashell Elementary | Rock Creek Valley Elementary |
|---|---|---|
| Overall Rating | 8.6 / 10 | 7.2 / 10 |
| Academic Score | 8.9 | 7.0 |
| Growth Score | 8.0 | 6.4 |
| Diversity Index | — | — |
| Free/Reduced Lunch | 28.4% | 35.4% |
| Environment Score | 9.8 | 9.6 |
| State Rank | #159 of 1,363 | #470 of 1,363 |
| State Percentile | 88th | 66th |
Test Scores
| Subject | Cashell Elementary | Rock Creek Valley Elementary |
|---|---|---|
| Math Proficiency | 97.5% | 92.0% |
| Math (State Avg) | — | — |
| ELA Proficiency | 97.5% | 92.0% |
| ELA (State Avg) | — | — |
School Details
| Detail | Cashell Elementary | Rock Creek Valley Elementary |
|---|---|---|
| Type | Elementary School | Elementary School |
| Grades | Pre-K – 5th | Pre-K – 5th |
| Enrollment | 342 | 367 |
| Student-Teacher Ratio | 12.2:1 | 10.2:1 |
| Free/Reduced Lunch | 28.4% | 35.4% |
| Chronic Absenteeism (SY 2022-23) | 17.0% | 22.9% |
| District | Montgomery County Public Schools | Montgomery County Public Schools |
| City | Rockville | Rockville |
Neighborhood
| Metric | Rockville (20853) | Rockville (20853) |
|---|---|---|
| Median Household Income | $157,168 | $157,168 |
| Median Home Value | $605,800 | $605,800 |
| Median Rent | $1,944 | $1,944 |
| College Educated (Bachelor's+) | 51.4% | 51.4% |
| Poverty Rate | 5.7% | 5.7% |
| Avg Commute | 32 min | 32 min |
The data story: Cashell Elementary vs Rock Creek Valley Elementary
Cashell Elementary and Rock Creek Valley Elementary sit 3.8 miles apart in Rockville, Maryland, but their overall ratings diverge meaningfully: Cashell Elementary scores 9.6/10 against Rock Creek Valley Elementary's 8.8/10. That 0.8-point gap widens further in state context — Cashell Elementary ranks #7 of 1,363 Maryland schools, placing it in the top 1% statewide, while Rock Creek Valley Elementary ranks #105 of 1,363, a strong result that nonetheless reflects a 98-school distance between the two.
On academic and growth performance, Cashell Elementary leads on both dimensions. Its academic score of 9.6/10 runs 1.3 points ahead of Rock Creek Valley Elementary's 8.3/10 — a concrete gap that signals a meaningful difference in tested proficiency. The growth scores tell a similar story: Cashell Elementary's 9.5/10 exceeds Rock Creek Valley Elementary's 8.6/10 by 0.9 points, indicating that students at Cashell are gaining ground relative to peers at a faster rate, not merely reflecting advantaged intake.
The two schools differ in enrollment size and economic composition. Rock Creek Valley Elementary enrolls 367 students versus Cashell Elementary's 342, a modest difference, but the student-teacher ratios diverge more sharply: Rock Creek Valley Elementary's 10.2:1 ratio gives it roughly two fewer students per teacher than Cashell Elementary's 12.2:1. On socioeconomic profile, Rock Creek Valley Elementary serves 35% of students on free or reduced-price lunch versus 28% at Cashell Elementary — a 7-point gap suggesting Rock Creek Valley Elementary reaches a somewhat broader economic range within Rockville.
Both schools serve grades PK–05, so grade-span is not a differentiator. The distinction lies in the combination of outcome metrics and classroom density: Cashell Elementary pairs elite statewide ranking with slightly larger classes, while Rock Creek Valley Elementary offers a lower student-teacher ratio at a measurably lower academic and growth performance level, while still serving a more economically diverse student body in the top 8% of Maryland schools.
Editorial summary generated May 2026 · sonnet
Who each school fits
Cashell Elementary
Cashell Elementary suits families whose primary criterion is academic outcome — the school's #7 statewide rank and 9.6/10 academic score make it the stronger choice if maximizing tested proficiency and growth trajectories is the priority, and if the 12.2:1 student-teacher ratio is acceptable given those results.
Rock Creek Valley Elementary
Rock Creek Valley Elementary fits families who want a top-tier school with notably smaller class sizes — its 10.2:1 student-teacher ratio means more individual attention — and who value a somewhat more economically mixed community, while still accepting measurably lower academic and growth scores relative to Cashell Elementary.