Congratulations to Huntingtower School for winning the 2021 Division 1 EISM Swimming title. In a super-competitive night of swimming, Huntingtower were able to hold off a fast finishing Luther College, with Aquinas College in third place. Bialik College were awarded Most Improved School.
Jack Van Loon from Eltham College added another 2 individual records to his astonishing EISM swim career in the Open Boys 100m Freestyle and 50m Butterfly events, taking his overall records tally to 9. Whilst the Open Girls Freestyle relay team from Luther College smashed the previous record and broke the 2 minute barrier with a time of 1:57:35.
Final Team Scores
| Aquinas | Bialik | Eltham | Emmaus | Huntingtower | Kilvington | Kingswood | Knox | Luther | |
| Points | 1782 | 1592 | 1701 | 1752 | 2020 | 1737 | 1542 | 1671 | 1947 |
| Place | 3 | 8 | 6 | 4 | 1 | 5 | 9 | 7 | 2 |