Cornerstone Schools-Washington
Washington · DC · Religious-affiliated · K-12 combined
Similar nearby schools
Most similar nearby schools
Living Word Christian School → Gonzaga College High School → Sidwell Friends School → St Anselm'S Abbey School → Kennedy Institute → Archbishop Carroll High School → Georgetown Visitation Preparatory School → St Johns College High School →Keep this page current
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How Cornerstone Schools-Washington compares for families
What families should know about Cornerstone Schools-Washington.
- ▸ LocallyDC trails the US average on NAEP 8th-grade math (−12 points). Stronger local schools matter even more.
- ▸ vs Similar SchoolsThe closest comparables nearby: Living Word Christian School, Gonzaga College High School, Sidwell Friends School and 5 more. See the sidebar to compare side-by-side.
For Parents
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Enrollment trend & projection
Private school enrollment comes from the NCES Private School Universe Survey (PSS), which is collected every other year — not annually like public-school data. The most recent published collection is 2021–22; NCES targeted spring 2026 for the 2023–24 release — we'll load it as soon as it's published.
If the recent trend holds…
At its recent rate of -0.5%/year, projecting from 2022's 160 students:
A small or specialty program — naive trend math doesn't capture the school's full picture. Read the trend as directional, not predictive.
An extrapolation of the recent trajectory, not a forecast of the school's plans; ignores one-off shocks.
Most similar nearby high schools
The schools most like this one — same type, blended on distance and size — and where their enrollment is heading. These are the schools families here weigh against each other.
| School | Type | Miles | HS enrollment | Trend |
|---|---|---|---|---|
| Living Word Christian School Washington |
Private | 4.6 | 26 | — |
| Gonzaga College High School Washington |
Private | 3.6 | 956 | -0.6% |
| Sidwell Friends School Washington |
Private | 7.8 | 1,120 | -0.5% |
| St Anselm'S Abbey School Washington |
Private | 4.9 | 251 | — |
| Kennedy Institute Washington |
Private | 5.0 | 44 | — |
| Archbishop Carroll High School Washington |
Private | 5.1 | 383 | — |
| Georgetown Visitation Preparatory School Washington |
Private | 6.8 | 509 | +2.0% |
| St Johns College High School Washington |
Private | 8.0 | 1,279 | +9.3% |
At a glance
JSON · Using this page with an AI assistantCornerstone Schools-Washington is a private high school in Washington, DC, enrolling 160 students in grades 9-12 in 2022.
Enrollment is down 2% from 2018 to 2022.
Sources: National Center for Education Statistics (enrollment), the federal Civil Rights Data Collection and EDFacts, state education agencies where named, and the school's own published documents where named.
Questions families ask
How many students attend Cornerstone Schools-Washington? Cornerstone Schools-Washington is a private high school in Washington, DC, enrolling 160 students in grades 9-12 in 2022.
Analysis: Test Prep Gurus (High School Reach, highschoolreach.com). These figures may be quoted with attribution to Test Prep Gurus.
More private high schools in the Washington, DC area, ranked by their published college lists.
What does AI tell parents about Cornerstone Schools-Washington?
When a parent asks an AI assistant about Cornerstone Schools-Washington, the answer is built from a handful of sources, and Reach is often one of them. We will send the admissions office a short report on what AI says about Cornerstone Schools-Washington and where it comes from. The first report is free.
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Related reading
AP courses · October 2026
Test scores · October 2026