| School | Address | City | Province | Postal Code |
| Cairine Wilson Secondary School | 975 Orleans Boulevard | Ottawa | ON | K1C 2Z5 |
| Calgary Christian School | 5029 - 26th Avenue S.W. | Calgary | AB | T3E 0R5 |
| Calgary French and International School | 700 77th Street S.W. | Calgary | AB | T3H 5R1 |
| Calvin Christian School | Box 40 | Monarch | AB | T0L 1M0 |
| Campbell Collegiate | 102 Massey Road | Regina | SK | S4S 4G5 |
| Campbellford District High School | 119 Ranney Street North | Campbellford | ON | K0L 1L0 |
| Camrose Composite High School | 6205 - 48 Avenue | Camrose | AB | T4V 0K4 |
| Canadian Independent College | 3601 Sandhills Road | Baden | ON | N3A 3B9 |
| Canmore Collegiate High School | PO Box 583 | Canmore | AB | T0L 0M0 |
| Carbonear Integrated Collegiate | PO Box 110 | Carbonear | NF | A0A 1T0 |
| Cardinal Carter Catholic Secondary School | 120 Ellison Avenue | Leamington | ON | N8H 5C7 |
| Cardinal Léger Junior High School | 8808 - 144 Avenue | Edmonton | AB | T5E 3G7 |
| Cardinal Newman Catholic High School | 100 Brimley Road South | Scarborough | ON | M1M 3X4 |
| Cariboo Hill Secondary School | 8580 16th Avenue | Burnaby | BC | V5E 1S6 |
| Carihi Secondary School | 350 Dogwood Street | Cambell River | BC | V9W 2X9 |
| Carnduff High School | Box 398 | Carnduff | SK | S0C 0S0 |
| Carson Graham Secondary School | 2145 Jones Avenue | North Vancouver | BC | V7M 2W7 |
| Carver Christian High School | 7650 Sapperton Avenue | Burnaby | BC | V3N 4E1 |
| Cathedral HIgh School | 30 Wentworth Street North | Hamilton | ON | L8L 8H5 |
| Catholic Central High School | 405 - 18th Street South | Lethbridge | AB | T1J 3E5 |
| Centennial Collegiate | 289 College Avenue | Guelph | ON | N1G 1S9 |
| Centennial Collegiate | 160 Nelson Road | Saskatoon | SK | S7S 1P5 |
| Centennial High School | 55 Sun Valley Boulevard | Calgary | AB | T2X 3W7 |
| Centennial School | 570 Poirier Street | Coquitlam | BC | V3J 6A8 |
| Central Collegiate Institute | 49 Oxford Street West | Moose Jaw | SK | S6H 2N4 |
| Central Dufferin District High School | 150 Fourth Avenue | Shelburne | ON | L0N 1S1 |
| Central Elgin Collegiate Institute | 201 Chestnut Street | St Thomas | ON | N5R 2B5 |
| Central Kings Rural High School | Cambridge Station | Kings County | NS | B0P 1G0 |
| Central Memorial High School | 5111 21st Street S. W. | Calgary | AB | T3E 1R9 |
| Centre Scolaire Samuel-de-Champlain | 67 chemin Ragged Point | Saint-Jean | NB | E2K 5C3 |
| Chaminade College School | 490 Queens Drive | Toronto | ON | M6L 1M8 |
| Charles E. London Secondary School | 10331 Gilbert Road | Richmond | BC | V7E 2H2 |
| Chatham Collegiate Institute | 51 Prince Street North | Chatham | ON | N7M 4J7 |
| Chatham Kent Secondary School | 285 McNaughton Ave E | Chatham | ON | N7L 2G7 |
| Chilliwack Secondary School | 46363 Yale Road | Chilliwack | BC | V2P 2P9 |
| Chippewa Secondary School | 539 Chippewa Street West | North Bay | ON | P1B 6G8 |
| Claremont Secondary School | 4980 Wesley Road | Victoria | BC | V8Y 1Y9 |
| Clarenville Integrated High School | PO Box 309 | Clarenville | NF | A0E 1J0 |
| Clarington Central High School | 200 Clarington Boulevard | Bowmanville | ON | L1C 5N8 |
| Clarke High School | 3425 Highway 35/115 | Newcastle | ON | L1B 1L9 |
| Clear Water Academy | 2521 Dieppe Avenue SW | Calgary | AB | T3E 7J9 |
| Cobourg District Collegiate Institute East | 335 King Street East | Cobourg | ON | K9A 1M2 |
| Cobourg District Collegiate Institute West | 135 Kings Street West | Cobourg | ON | K9A 2M7 |
| Cochrane High School | 529 4th Avenue | Cochrane | AB | T0L 0W2 |
| College Heights Secondary School | 6184 Domano Boulevard | Prince George | BC | V2N 3Z4 |
| College Jeanne Sauve | 1128 Dakota Street | Winnipeg | MB | R2N 3T8 |
| Collingwood School | 70 Morven Drive | West Vancouver | BC | V7S 1B2 |
| CollŠge international Marie de France | 4365 Queen Mary | Montr‚al | QC | H3W 1W3 |
| Columbia International College | 1033 Main Street W | Hamilton | ON | L8S 1B7 |
| Cornwall Collegiate and Vocational Institute | 437 Sydney Street | Cornwall | ON | K6H 3H9 |
| Country Day School | 13415 Dufferin Street | King City | ON | L7B 1K5 |
| Cowichan Secondary School | 2652 James Street | Duncan | BC | V9L 2X2 |
| Crescent Heights High School | 1019 1st Street North West | Calgary | AB | T2M 2S2 |
| Crescent School | 2365 Bayview Avenue | Willowdale | ON | M2L 1A2 |
| Crestwood Preparatory College | 217 Bookbanks Drive | Toronto | ON | M3A 2T7 |
| Crestwood Secondary School | 1885 Sherbrooke Street West | Peterborough | ON | K9J 6X4 |
| Crocus Plains Regional Secondary School | 1930 1st Street | Brandon | MB | R7A 6Y6 |
| Crofton House School | 3200 West 41st Avenue | Vancouver | BC | V6N 3E1 |