Rosemont Elementary
Gaithersburg cluster · 16400 Alden Ave, 20877
School website ↗·Rosemont PTA ↗
Academics
MCAP proficiency over time.
Data table
| Series | 2019 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|
| ELA | 42.3% | 16.7% | 31.6% | 39.9% | 44.5% | 46.1% | 45.5% |
| Math | 33.6% | 13.9% | 21.1% | 26.6% | 33.9% | 39.5% | 35.3% |
| Science | 14.6% | 34.2% | 13.8% | 19.3% | 10.8% | 22.1% | 21% |
Testing paused in 2020. Science scoring changed twice (2019 pre-MCAP scale; 2021 three bands, two pooled administrations; four bands from 2022), so science points before 2022 aren't comparable to later ones. Science swung sharply statewide between 2023 and 2026 (down, then back up, one grade at a time); those moves likely reflect the state assessment, not school-level change.
Class size
Average class size by grade band over recent years, with the latest year measured against MCPS's published guideline.
Data table
| Series | 2017-2018 | 2018-2019 | 2019-2020 | 2020-2021 | 2021-2022 | 2022-2023 | 2023-2024 | 2024-2025 |
|---|---|---|---|---|---|---|---|---|
| Kindergarten | 18.0 * | 16.6 * | 18.2 * | 17.3 * | 17.5 * | 17.8 * | 18.8 | 18.0 |
| Grades 1 to 3 | 17.9 * | 18.7 * | 17.0 * | 17.2 * | 16.5 * | 18.0 * | 17.6 | 18.3 |
| Grades 4 to 5 | 21.3 * | 25.9 * | 23.0 * | 20.0 * | 21.4 * | 22.3 * | 20.3 | 25.6 |
- Kindergarten18target 19 · within guideline
- Grades 1 to 318.3target 19–25 · within guideline
- Grades 4 to 525.6target 27 · within guideline
Source: MCPS School Profiles class-size extract vs. MCPS published class-size guidelines · Updated: 2024-2025
Proficiency by student group
This school's MCAP ELA proficiency by group (latest year). The spread is the opportunity gap.
5 groups not shown — too few students to report (withheld for privacy, not zero).
Special education
Data table
| Series | 2023 | 2024 | 2025 |
|---|---|---|---|
| Inclusion % | 74% | 69% | 78.1% |
Time in general education (2025): 80%+ of the day ≥95% · 40–79% ≤5% · under 40% ≤5%
Staffing rates are per 100 students with IEPs; staffing is from 2025. Withheld values reflect privacy suppression, not zero.
Source: MCPS School Profiles / unified facts (LRE, staffing, SWD enrollment) · Updated: inclusion 2025, staffing 2025
Staffing
Staff relative to enrollment. The chip compares this school to the typical elementary school at this level.
Special education & multilingual support
Source: MCPS unified facts — staff FTE per student (support services = instructional support staff)
Programs & services
Special, choice, and support programs offered at this school — from magnet and application programs to career pathways and special-education services.
Academics
Student Support
Special Education
Source: MCPS Office of Student Affairs program catalog (2025). Find schools by program →
Students
Data table
| Series | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|
| Enrollment | 602 | 595 | 615 | 595 | 564 | 593 |
By race / ethnicity (2026).
Climate
Attendance and chronic absenteeism (absent 10%+ of days).
Data table
| Series | 2019 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Attendance | 93.7% | 93.7% | 90.9% | 90.6% | 91.7% | 92.4% |
| Chronic absenteeism | 22.7% | 23.2% | 37.9% | 38% | 32.5% | 29.4% |
Enrollment & capacity outlook
A ten-year probabilistic enrollment forecast for this school, checked against its capacity. Part of the countywide capacity outlook, which explains the method and its track record.
Data table
| School year | Actual | Forecast (p10–p90) | MCPS projection |
|---|---|---|---|
| 2017–18 | 619 | — | — |
| 2018–19 | 628 | — | — |
| 2019–20 | 645 | — | — |
| 2020–21 | 602 | — | — |
| 2021–22 | 595 | — | — |
| 2022–23 | 615 | — | — |
| 2023–24 | 595 | — | — |
| 2024–25 | 564 | — | — |
| 2025–26 | 593 | — | — |
| 2026–27 | — | 581 (541–626) | 556 |
| 2027–28 | — | 567 (512–625) | 547 |
| 2028–29 | — | 565 (498–640) | 554 |
| 2029–30 | — | 579 (500–672) | 557 |
| 2030–31 | — | 588 (503–687) | 527 |
| 2031–32 | — | 568 (482–665) | — |
| 2032–33 | — | 563 (480–658) | — |
| 2033–34 | — | 562 (479–661) | — |
| 2034–35 | — | 562 (475–659) | — |
| 2035–36 | — | 560 (476–659) | — |
Source: mc-development forecast model — base year SY 2025–26; boundaries 2024-2025; development snapshot 2026-06-02 · Updated: 2026-07-31T00:00:00Z
Data: MSDE State Report Card (2019–2026), MCPS official Sept 30, 2025 enrollment count (extends the enrollment trend to 2025-26), MCPS School Profiles & unified facts, U.S. Census ACS 2024, MD SDAT. “≥95” / “≤5” and dropped groups are privacy-suppressed for small counts — withheld, not zero. Independent project, not affiliated with MCPS or MSDE.