Poolesville High
Poolesville cluster · 17501 West Willard Rd, 20837
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Academics
MCAP proficiency over time.
Data table
| Series | 2019 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|
| ELA | 82.7% | 83% | 86.8% | 75.5% | 90.4% | 92.5% | 94.5% |
| Math | 32.7% | 20.5% | 16.3% | 8.8% | 8.9% | 20.8% | 15.5% |
| Science | 87.3% | 77.6% | 67.2% | 69.5% | 84.7% | 89.2% | — |
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. High-school science isn’t published for 2026 yet. 2019 math reflects the larger PARCC-era Algebra 1 testing population and isn't comparable to later years.
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 |
|---|---|---|---|---|---|---|---|---|
| English | 18.5 * | 18.6 * | 21.1 * | 21.5 * | 20.2 * | 17.9 * | 22.8 | 23.6 |
| Other | 22.5 * | 19.3 * | 22.1 * | 22.1 * | 20.4 * | 21.0 * | 24.9 | 24.4 |
- English23.6target 30 · within guideline
- Other24.4target 33 · 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.
10 groups not shown — too few students to report (withheld for privacy, not zero).
Special education
Data table
| Series | 2023 | 2024 | 2025 |
|---|---|---|---|
| Inclusion % | — | 87.3% | 83.6% |
Time in general education (2025): 80%+ of the day 83.6% · 40–79% 16.4% · 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 high 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.
Magnet - Application
Academics
CTE
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 | 1,236 | 1,272 | 1,309 | 1,332 | 1,351 | 1,377 |
By race / ethnicity (2026).
Climate
Attendance and chronic absenteeism (absent 10%+ of days).
Data table
| Series | 2019 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Attendance | 94.2% | ≥ 95.0 | ≥ 95.0 | 93.4% | 93.4% | 93% |
| Chronic absenteeism | 18.6% | 13.5% | 19.3% | 19.9% | 19.9% | 20.8% |
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 | 1183 | — | — |
| 2018–19 | 1185 | — | — |
| 2019–20 | 1205 | — | — |
| 2020–21 | 1236 | — | — |
| 2021–22 | 1272 | — | — |
| 2022–23 | 1309 | — | — |
| 2023–24 | 1332 | — | — |
| 2024–25 | 1351 | — | — |
| 2025–26 | 1377 | — | — |
| 2026–27 | — | 1349 (1271–1432) | 1365 |
| 2027–28 | — | 1434 (1300–1570) | 1381 |
| 2028–29 | — | 1459 (1290–1648) | 1350 |
| 2029–30 | — | 1437 (1222–1699) | 1355 |
| 2030–31 | — | 1430 (1175–1740) | 1347 |
| 2031–32 | — | 1428 (1135–1819) | — |
| 2032–33 | — | 1417 (1077–1885) | — |
| 2033–34 | — | 1410 (1035–1940) | — |
| 2034–35 | — | 1393 (976–2000) | — |
| 2035–36 | — | 1384 (919–2074) | — |
- Includes the board-adopted boundary change effective SY 2027–28. Because this school hosts a large countywide program, its figures follow the board's adopted projection rather than a boundary ratio.
- This school enrolls roughly 675 more students than its own attendance area produces — it hosts a countywide or regional program (such as a magnet). Boundary studies count only resident students and so understate it; this forecast counts everyone in the building.
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.