Charlottenburgh and Lancaster District High School vs Holy Trinity Catholic Secondary School
A head-to-head comparison of two secondary schools in Ontario, Canada, 13 km apart, using official Canadian 2025 data. The better value in each row is highlighted.
Charlottenburgh and Lancaster District High School
Williamstown · Public secondary · Grades 9-12
200 students
Holy Trinity Catholic Secondary School
South Glengarry · Catholic secondary · Grades 9-12
535 students
| Measure | Charlottenburgh and Lancaster District High School Williamstown, Ontario | Holy Trinity Catholic Secondary School South Glengarry, Ontario |
|---|---|---|
| Success Index (Canada) | 67 Top 50% | 18 Lower 50% |
| Province rank | #200 of 766 | #675 of 766 |
| National rank | #200 of 766 | #675 of 766 |
| Sector | Public | Catholic |
| Type | Secondary | Secondary |
| Year range | Grades 9-12 | Grades 9-12 |
| Students | 200 | 535 |
| Enrolment | 200 | 535 |
| EQAO Grade 3 | – | – |
| EQAO Grade 6 | – | – |
| EQAO Grade 9 maths | 54% | 41% |
| OSSLT pass rate | 96% | 72% |
| Low-income households | 10% | 15% |
| Parents without a credential | 0% | 6% |
| First language not English | 0% | 15% |
| Special education | 30% | 32% |
| Identified as gifted | 0% | 0% |
| FSA literacy score | – | – |
| FSA numeracy score | – | – |
| FSA Grade 4 literacy score | – | – |
| FSA Grade 4 numeracy score | – | – |
| FSA Grade 7 literacy score | – | – |
| FSA Grade 7 numeracy score | – | – |
| city or town | Williamstown | South Glengarry |
| province | Ontario | Ontario |
| Website | char-lan.ucdsb.on.ca/ | www.holytrinityfalcons.cdsbeo.on.ca/ |
The verdict
- •Charlottenburgh and Lancaster District High School scores higher on the Success Index (Canada) (67.3 vs 18.2).
- •Charlottenburgh and Lancaster District High School does better on eqao grade 9 mathematics (54% vs 41%).
- •Charlottenburgh and Lancaster District High School does better on osslt first-attempt pass rate (96% vs 72%).
- •Holy Trinity Catholic Secondary School is the larger school with 535 students compared with 200.
- •Charlottenburgh and Lancaster District High School is a public school while Holy Trinity Catholic Secondary School is a catholic school, so fees and admission rules differ.
The Success Index (Canada) summarises published results and context from official data. It does not measure teaching quality or fit. Methodology.
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Frequently asked questions
Is Charlottenburgh and Lancaster District High School better than Holy Trinity Catholic Secondary School?
On the Success Index (Canada), Charlottenburgh and Lancaster District High School ranks higher (67.3 vs 18.2 out of 100). The index is built from published results and context data, not from teaching quality or fit, so visit both schools before deciding.
How far apart are Charlottenburgh and Lancaster District High School and Holy Trinity Catholic Secondary School?
About 13 km in a straight line, between Williamstown and South Glengarry in Ontario.
Which has the better Enrolment?
Charlottenburgh and Lancaster District High School: 200. Holy Trinity Catholic Secondary School: 535. Students enrolled in the latest published year.
How do Charlottenburgh and Lancaster District High School and Holy Trinity Catholic Secondary School rank in Ontario?
Charlottenburgh and Lancaster District High School is 200th of 766 and Holy Trinity Catholic Secondary School is 675th of 766 among secondary schools in Ontario on the 2025 Success Index (Canada).