Young Round Square of the Americas: Member Schools
| Appleby College | Oakville, Ontario, Canada |
| Ashbury College | Ottawa, Ontario, Canada |
| The Athenian School | Danville, California, USA |
| Bayview Glen School | Toronto, Ontario, Canada |
| Bermuda High School for Girls | Pembroke, Bermuda |
| Bishop’s College School | Lennoxville, Quebec, Canada |
| Chadwick School | Palos Verdes Peninsula, California, USA |
| Collingwood School | West Vancouver, British Columbia, Canada |
| Fern Hill School | Oakville, Ontario, Canada |
| Fern Hill School | Burlington, Ontario, Canada |
| Foothill Country Day School | Claremont, California, USA |
| Glenlyon-Norfolk School | Victoria, British Columbia, Canada |
| Greenwood College School | Toronto, Ontario, Canada |
| Lakefield College School | Lakefield, Ontario, Canada |
| Lower Canada College | Montreal, Quebec |
| Markham College | Lima, Peru |
| Rothesay Netherwood School | New Brunswick, Canada |
| Saint Mildred's Lightbourn School | Oakville, Canada |
| Sedbergh School | Montebello, Quebec, Canada |
| Stanstead College | Stanstead, Quebec, Canada |
| St. Clement’s School | Toronto, Ontario, Canada |
| St. John’s Kilmarnock School | Breslau, Ontario, Canada |
| Strathcona-Tweedsmuir School | Okotoks, Alberta, Canada |
| Westtown School | Westtown, Pennsylvania, USA |
