| Final | time | L | | 1. Beth Whittall | CAN | 5:32.4 | | 2. Carolyn Green | USA | 5:34.7 | | 3. Carol Tait | USA | 5:34.9 | | 4. Susan Grey | USA | 5:36.5 | | 5. Gilda Aranda | MEX | 5:44.2 | | 6. Blanca Luz Barron | MEX | 5:47.8 |
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| Heats - Wednesday 23.03 16:05 |
| Heat 1 | time | Rk. | | 1. Carolyn Green | USA | 5:43.0 | | 2. Gladys Prestley | CAN | 5:45.0 | | 3. Ana Maria Schultz | ARG | 5:49.7 | | 4. Susan Lancaster | CAN | 5:56.0 | | 5. Orlanda Vergara | BRA | 6:06.2 | | 6. Agnes Smith | MEX | 6:14.4 | | 7. Carmen Navarette | CUB | 6:35.9 |
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| Heat 2 | time | Rk. | | -. Beth Whittall | CAN | | | -. Carol Tait | USA | | | -. Susan Grey | USA | | | -. Gilda Aranda | MEX | | | -. Blanca Luz Barron | MEX | |
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