Glenallan Elementary
Downcounty Consortium cluster · 12520 Heurich Rd, 20902
School website ↗·Glenallan PTA ↗
Academics
MCAP proficiency over time.
Data table
| Series | 2019 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|
| ELA | 32.1% | 18.5% | 39.8% | 35.3% | 35.2% | 37.3% | 43.6% |
| Math | 35.6% | 15.9% | 26.5% | 26.5% | 28.2% | 29.1% | 29.3% |
| Science | 14.4% | 23.3% | 20.7% | 16.5% | 21.7% | 13% | 20% |
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 | 15.4 * | 18.1 * | 15.6 * | 15.6 * | 15.0 * | 16.8 * | 18.3 | 12.2 |
| Grades 1 to 3 | 18.4 * | 18.9 * | 18.2 * | 18.4 * | 16.8 * | 18.4 * | 18.7 | 17.6 |
| Grades 4 to 5 | 25.8 * | 22.4 * | 22.7 * | 20.5 * | 23.2 * | 23.6 * | 20.6 | 24.7 |
- Kindergarten12.2target 19 · within guideline
- Grades 1 to 317.6target 19–25 · within guideline
- Grades 4 to 524.7target 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.
4 groups not shown — too few students to report (withheld for privacy, not zero).
Special education
Data table
| Series | 2023 | 2024 | 2025 |
|---|---|---|---|
| Inclusion % | 73.7% | 85.5% | 81.5% |
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 | 707 | 689 | 656 | 673 | 679 | 679 |
By race / ethnicity (2026).
Climate
Attendance and chronic absenteeism (absent 10%+ of days).
Data table
| Series | 2019 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Attendance | ≥ 95.0 | ≥ 95.0 | 92.3% | 92.4% | 93.4% | 93.5% |
| Chronic absenteeism | 17.4% | 15.9% | 33.8% | 28.9% | 23.1% | 23.7% |
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 | 717 | — | — |
| 2018–19 | 746 | — | — |
| 2019–20 | 744 | — | — |
| 2020–21 | 707 | — | — |
| 2021–22 | 689 | — | — |
| 2022–23 | 656 | — | — |
| 2023–24 | 673 | — | — |
| 2024–25 | 656 | — | — |
| 2025–26 | 679 | — | — |
| 2026–27 | — | 654 (607–707) | 647 |
| 2027–28 | — | 630 (565–701) | 630 |
| 2028–29 | — | 605 (530–684) | 617 |
| 2029–30 | — | 589 (512–669) | 595 |
| 2030–31 | — | 563 (489–649) | 608 |
| 2031–32 | — | 575 (497–663) | — |
| 2032–33 | — | 569 (491–662) | — |
| 2033–34 | — | 569 (489–660) | — |
| 2034–35 | — | 565 (492–655) | — |
| 2035–36 | — | 566 (488–656) | — |
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.