| Age | Event | Time | Name | School | Year |
|---|---|---|---|---|---|
| Open | 800m freestyle | 8:52.72 | Danielle Woods | Kirrawee HS | 1996 |
| 17-19 years | 400m freestyle | 4:20.89 | Janelle Elford | Peakhurst HS | 1987 |
| 15-16 years | 400m freestyle | 4:24.33 | Jessica Madden | Port Hacking HS | 2018 |
| 12-14 years | 400m freestyle | 4:26.11 | Rachel Wood | Brisbane Water HS | 2013 |
| 17-19 years | 200m freestyle | 2:03.72 | Sophie Taylor | Riverside Girls HS | 2014 |
| 16 years | 200m freestyle | 2:05.10 | Zoe Diamond | Hurlstone Ag HS | 2009 |
| 15 years | 200m freestyle | 2:05.33 | Ami Matsuo | Willoughby HS | 2011 |
| 14 years | 200m freestyle | 2:07.70 | Ami Matsuo | Willoughby HS | 2010 |
| 13 years | 200m freestyle | 2:09.23 | Phillipa Reeves | Newcastle HS | 1990 |
| 12 years | 200m freestyle | 2:15.70 | Phillipa Reeves | Newcastle HS | 1989 |
| 17-19 years | 100m freestyle | 56.37 | Heli Childs | Sydney Secondary College, Blackwattle Bay Campus | 2019 |
| 16 years | 100m freestyle | 57.51 | Zoe Diamond | Hurlstone Agricultural HS | 2009 |
| 15 years | 100m freestyle | 56.53 | Ami Matsuo | Willoughby HS | 2011 |
| 14 years | 100m freestyle | 58.30 | Ciara Nixon | Corrimal HS | 2026 |
| 13 years | 100m freestyle | 59.64 | Emily Rosskelly | Oak Flats HS | 2011 |
| 12 years | 100m freestyle | 1:02.31 | Amy Bannatyne | Model Farms HS | 2003 |
| 17-19 years | 50m freestyle | 26.30 | Mariah Jones | Tweed River HS | 2010 |
| 16 years | 50m freestyle | 26.02 | Ami Matsuo | Willoughby HS | 2012 |
| 15 years | 50m freestyle | 26.20 | Ami Matsuo | Willoughby HS | 2011 |
| 14 years | 50m freestyle | 26.99 | Hannah Huisman | NBSC Mackellar Girls Campus | 2024 |
| 13 years | 50m freestyle | 27.35 | Emily Rosskelly | Oak Flats HS | 2011 |
| 12 years | 50m freestyle | 28.77 | Ava Hepburn | Tuggerah Lakes HS | 2022 |
| 17-19 years | 100m backstroke | 1:03.52 | Fiona Connell | The Hills Sports HS | 2008 |
| 16 years | 100m backstroke | 1:04.83 | Kirstie Meertens | Model Farms HS | 2009 |
| 15 years | 100m backstroke | 1:06.25 | Ellysia Oldsen | Willyama HS | 2010 |
| 14 years | 100m backstroke | 1:06.41 | Emily Jones | Glendale HS | 2017 |
| 13 years | 100m backstroke | 1:07.19 | Anna Campbell | Ballina HS | 1999 |
| 12 years | 100m backstroke | 1:10.51 | Lucy Tabrett | Belmont HS | 2009 |
| 17-19 years | 100m breaststroke | 1:08.67 | Sienna Toohey | Albury HS | 2026 |
| 16 years | 100m breaststroke | 1:11.31 | Isabelle Raw | Albury HS | 2024 |
| 15 years | 100m breaststroke | 1:08.93 | Sienna Toohey | Albury HS | 2024 |
| 14 years | 100m breaststroke | 1:11.58 | Sienna Toohey | Albury HS | 2023 |
| 13 years | 100m breaststroke | 1:14.21 | Jasmine Tran | Moorebank HS | 2016 |
| 12 years | 100m breaststroke | 1:17.62 | Jasmine Tran | Moorebank HS | 2015 |
| 17-19 years | 100m butterfly | 1:02.01 | Brigitte Fenske | Kiama HS | 2012 |
| 16 years | 100m butterfly | 1:02.28 | Bindi Ware | Banora Point HS | 2018 |
| 15 years | 100m butterfly | 1:02.53 | Emily Jones | Glendale HS | 2018 |
| 14 years | 100m butterfly | 1:04.38 | Ebony Nix | Tomaree HS | 2021 |
| 13 years | 100m butterfly | 1:05.13 | Mikaela Short | Oxley HS | 2016 |
| 12 years | 100m butterfly | 1:08.91 | Gabi Sainsbury | Merewether HS | 2003 |
| 17-19 years | 400m individual medley | 4:52.35 | Jessica Madden | Port Hacking HS | 2019 |
| 15-16 years | 400m individual medley | 4:58.15 | Jessica Madden | Port Hacking HS | 2018 |
| 12-14 years | 400m individual medley | 5:08.38 | Jessica Legge | Lambton HS | 2006 |
| 17-19 years | 200m individual medley | 2:16.95 | Charlotte Brown | Mackellar Girls HS | 2019 |
| 15-16 years | 200m individual medley | 2:21.11 | Charlotte Brown | Mackellar Girls HS | 2018 |
| 12-14 years | 200m individual medley | 2:24.41 | Tylah Crabtree | Lismore HS | 2019 |
| Mixed | 12 x 50m freestyle | 5:31.10 | Cronulla HS | 2019 | |
| 12-19 years | 6 x 50m freestyle | 2:55.56 | Willoughby Girls HS | 2009 | |
| 17-19 years | 4 x 50m freestyle | 1:54.35 | Willoughby Girls HS | 2014 | |
| 16 years | 4 x 50m freestyle | 1:53.94 | Willoughby Girls HS | 2010 | |
| 15 years | 4 x 50m freestyle | 1:52.90 | Sydney Girls HS | 2026 | |
| 14 years | 4 x 50m freestyle | 1:56.60 | Sydney Girls HS | 2025 | |
| 13 years | 4 x 50m freestyle | 2:00.12 | Endeavour Sports HS | 2023 | |
| 12 years | 4 x 50m freestyle | 2:07.94 | Woolooware HS | 1995 | |
| Open | 4 x 50m medley relay | 2:02.65 | Kingscliff HS | 2007 | |
| Mixed Open | 4 x 50m Central Schools relay | 1:56.50 | Warren CS | 2019 |