Sligo Middle
Downcounty Consortium cluster · 1401 Dennis Ave, 20902
School website ↗·Sligo MS PTSA ↗
Academics
MCAP proficiency over time.
Data table
| Series | 2019 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
|---|---|---|---|---|---|---|---|
| ELA | 52.9% | 32.5% | 45.5% | 46.9% | 49.1% | 50.1% | 50.5% |
| Math | 36.6% | 21.5% | 22.9% | 17.2% | 20.6% | 22.9% | 25.4% |
| Science | 42.1% | 44.4% | 39.5% | 25.5% | 33.5% | 33.9% | 41.7% |
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 |
|---|---|---|---|---|---|---|---|---|
| English | 15.7 * | 15.3 * | 15.5 * | 13.1 * | 12.6 * | 13.9 * | 23.4 | 23.0 |
| Other | 13.7 * | 11.4 * | 11.9 * | 12.2 * | 11.0 * | 11.9 * | 21.7 | 20.9 |
- English23target 30 · within guideline
- Other20.9target 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.
5 groups not shown — too few students to report (withheld for privacy, not zero).
Special education
Data table
| Series | 2023 | 2024 | 2025 |
|---|---|---|---|
| Inclusion % | 78.3% | 68.5% | 76.5% |
Time in general education (2025): 80%+ of the day 76.5% · 40–79% 5.1% · under 40% 18.4%
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 middle 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 | 738 | 718 | 676 | 702 | 685 | 700 |
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 | 94.7% | 93.9% | 94.2% | 94.9% |
| Chronic absenteeism | 13.1% | 14.1% | 15.4% | 18.6% | 16.2% | 12% |
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 | 724 | — | — |
| 2018–19 | 657 | — | — |
| 2019–20 | 722 | — | — |
| 2020–21 | 738 | — | — |
| 2021–22 | 718 | — | — |
| 2022–23 | 676 | — | — |
| 2023–24 | 702 | — | — |
| 2024–25 | 685 | — | — |
| 2025–26 | 700 | — | — |
| 2026–27 | — | 710 (661–758) | 713 |
| 2027–28 | — | 876 (781–974) | 699 |
| 2028–29 | — | 871 (746–1016) | 693 |
| 2029–30 | — | 859 (720–1026) | 670 |
| 2030–31 | — | 884 (709–1079) | 656 |
| 2031–32 | — | 856 (669–1077) | — |
| 2032–33 | — | 853 (648–1111) | — |
| 2033–34 | — | 808 (592–1071) | — |
| 2034–35 | — | 811 (586–1113) | — |
| 2035–36 | — | 796 (556–1116) | — |
- Includes the board-adopted boundary change effective SY 2027–28: this school is projected to gain about 142 resident students then. Earlier years use current boundaries.
- Approved development near this school is expected to add roughly 33 students within five years (probability-weighted; approval does not guarantee construction).
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.