| Competition | 2019 World Aquatics Championships | 
|---|---|
| Venue | 
Gwangju
 | 
| Held | 28 July 2019 | 
| Status | Medal | 
| Competitors | 100 | 
| Countries | 21 | 
| Pos | Athlete(s) | Country | Preliminary Round | Final | ||
|---|---|---|---|---|---|---|
| 🥇 | United States | 3:55.39 (1 h2)  | 
3:50.40 (1 F)  | 
|||
| Regan Smith | — | 57.57 | ||||
| Lilly King | — | 1:04.81 | ||||
| Kelsi Dahlia | — | 56.16 | ||||
| Simone Manuel | — | 51.86 | ||||
| Olivia Smoliga | 58.79 | — | * | |||
| Melanie Margalis | 1:06.40 | — | * | |||
| Katie McLaughlin | 57.15 | — | * | |||
| Mallory Comerford | 53.05 | — | * | |||
| 🥈 | Australia | 3:58.19 (2 h3)  | 
3:53.42 (2 F)  | 
|||
| Minna Atherton | — | 59.06 | ||||
| Jessica Hansen | 1:06.99 | 1:06.08 | ||||
| Emma McKeon | — | 56.32 | ||||
| Cate Campbell | — | 51.96 | ||||
| Kaylee McKeown | 59.44 | — | * | |||
| Brianna Throssell | 58.28 | — | * | |||
| Madi Wilson | 53.48 | — | * | |||
| 🥉 | Canada | 3:58.63 (4 h3)  | 
3:53.58 (3 F)  | 
|||
| Kylie Masse | 58.98 | 59.12 | ||||
| Sydney Pickrem | — | 1:06.42 | ||||
| Maggie Mac Neil | — | 55.56 | ||||
| Penny Oleksiak | — | 52.48 | ||||
| Kierra Smith | 1:08.61 | — | * | |||
| Rebecca Smith | 58.04 | — | * | |||
| Taylor Ruck | 53.00 | — | * | |||
| 4 | Italy | 3:58.35 (3 h2)  | 
3:56.50 (4 F)  | 
|||
| Margherita Panziera | 1:00.56 | 59.77 | ||||
| Martina Carraro | — | 1:06.87 | ||||
| Elena Di Liddo | — | 57.33 | ||||
| Federica Pellegrini | 53.57 | 52.53 | ||||
| Arianna Castiglioni | 1:06.68 | — | * | |||
| Ilaria Bianchi | 57.54 | — | * | |||
| 5 | China | 3:59.26 (5 h3)  | 
3:57.11 (5 F)  | 
|||
| Chen Jie | — | 1:00.89 | ||||
| Yu Jingyao | 1:07.28 | 1:06.42 | ||||
| Zhang Yufei | — | 56.44 | ||||
| Yang Junxuan | — | 53.36 | ||||
| Fu Yuanhui | 1:00.01 | — | * | |||
| Wang Yichun | 58.13 | — | * | |||
| Zhu Menghui | 53.84 | — | * | |||
| 6 | Japan | 3:59.87 (8 h2)  | 
3:58.14 (6 F)  | 
|||
| Natsumi Sakai | 1:00.16 | 59.48 | ||||
| Reona Aoki | 1:07.65 | 1:06.58 | ||||
| Hiroko Makino | 58.17 | 58.22 | ||||
| Rika Omoto | 53.89 | 53.86 | ||||
| 7 | Sweden | 3:59.40 (6 h2)  | 
3:58.39 (7 F)  | 
|||
| Michelle Coleman | 1:01.41 | 1:01.42 | ||||
| Sophie Hansson | 1:07.33 | 1:07.20 | ||||
| Louise Hansson | 57.43 | 57.23 | ||||
| Sarah Sjöström | 53.23 | 52.54 | ||||
| 8 | Great Britain | 3:59.74 (7 h3)  | 
3:59.38 (8 F)  | 
|||
| Georgia Davies | 1:00.32 | 59.55 | ||||
| Molly Renshaw | 1:08.00 | 1:07.72 | ||||
| Alys Thomas | 58.77 | 58.56 | ||||
| Freya Anderson | — | 53.55 | ||||
| Anna Hopkin | 52.65 | — | * | |||
| 9 | Germany | 4:00.91 (9 h2)  | 
— | |||
| Laura Riedemann | 1:00.20 | — | ||||
| Anna Elendt | 1:08.74 | — | ||||
| Angelina Köhler | 57.95 | — | ||||
| Jessica Steiger | 54.02 | — | ||||
| 10 | Netherlands | 4:01.42 (10 h3)  | 
— | |||
| Kira Toussaint | 1:00.04 | — | ||||
| Tes Schouten | 1:08.45 | — | ||||
| Kim Busch | 59.90 | — | ||||
| Femke Heemskerk | 53.03 | — | ||||
| 11 | Switzerland | 4:01.85 (11 h3)  | 
— | |||
| Nina Kost | 1:02.49 | — | ||||
| Lisa Mamié | 1:06.80 | — | ||||
| Sasha Touretski | 58.68 | — | ||||
| Maria Ugolkova | 53.88 | — | ||||
| 12 | Russia | 4:02.26 (12 h3)  | 
— | |||
| Darya Vaskina | 1:01.08 | — | ||||
| Anna Belousova | 1:08.47 | — | ||||
| Svetlana Chimrova | 58.33 | — | ||||
| Darya Ustinova | 54.38 | — | ||||
| 13 | South Korea | 4:03.38 (13 h1)  | 
— | |||
| Im Da-Sol | 1:00.44 | — | ||||
| Baek Su-Yeon | 1:08.70 | — | ||||
| Park Ye-Rin | 58.84 | — | ||||
| Jeong So-Eun | 55.40 | — | ||||
| 14 | Hong Kong | 4:03.52 (14 h2)  | 
— | |||
| Stephanie Au | 1:01.12 | — | ||||
| Jamie Yeung | 1:08.92 | — | ||||
| Chan Kin Lok | 1:00.45 | — | ||||
| Siobhán Haughey | 53.03 | — | ||||
| 15 | Poland | 4:04.27 (15 h2)  | 
— | |||
| Alicja Tchórz | 1:00.97 | — | ||||
| Weronika Hallmann | 1:08.88 | — | ||||
| Paulina Nogaj | 59.51 | — | ||||
| Katarzyna Wasick | 54.91 | — | ||||
| 16 | Denmark | 4:04.33 (16 h2)  | 
— | |||
| Mie Ø. Nielsen | 1:01.79 | — | ||||
| Matilde Schrøder | 1:08.74 | — | ||||
| Jeanette Ottesen Gray | 58.55 | — | ||||
| Julie Jensen | 55.25 | — | ||||
| 17 | South Africa | 4:05.12 (17 h2)  | 
— | |||
| Mariella Venter | 1:02.84 | — | ||||
| Tatjana Schoenmaker-Smith | 1:07.16 | — | ||||
| Tayla Lovemore | 59.34 | — | ||||
| Emma Chelius | 55.78 | — | ||||
| 18 | Finland | 4:05.50 (18 h1)  | 
— | |||
| Mimosa Jallow | 1:01.20 | — | ||||
| Ida Hulkko | 1:07.35 | — | ||||
| Jenna Laukkanen | 1:00.53 | — | ||||
| Laura Lahtinen | 56.42 | — | ||||
| 19 | Hungary | 4:05.61 (19 h3)  | 
— | |||
| Katalin Burián | 1:00.83 | — | ||||
| Anna Sztankovics | 1:08.96 | — | ||||
| Liliána Szilágyi | 59.25 | — | ||||
| Evelyn Verrasztó | 56.57 | — | ||||
| 20 | Turkey | 4:05.72 (20 h1)  | 
— | |||
| Ekaterina Avramova | 1:01.95 | — | ||||
| Viktoria Zeynep Güneş | 1:09.01 | — | ||||
| Aleyna Özkan | 59.42 | — | ||||
| Selen Özbilen | 55.34 | — | ||||
| 21 | Singapore | 4:11.67 (21 h3)  | 
— | |||
| Quah Jing Wen | 1:05.07 | — | ||||
| Christie May Chue | 1:11.02 | — | ||||
| Quah Ting Wen | 59.95 | — | ||||
| Cherlyn Yeoh | 55.34 | — | 
| Pos | Athlete(s) | Country | Mark | |
|---|---|---|---|---|
| 13 | South Korea | 4:03.38 | ||
| Im Da-Sol | 1:00.44 | |||
| Baek Su-Yeon | 1:08.70 | |||
| Park Ye-Rin | 58.84 | |||
| Jeong So-Eun | 55.40 | |||
| 18 | Finland | 4:05.50 | ||
| Mimosa Jallow | 1:01.20 | |||
| Ida Hulkko | 1:07.35 | |||
| Jenna Laukkanen | 1:00.53 | |||
| Laura Lahtinen | 56.42 | |||
| 20 | Turkey | 4:05.72 | ||
| Ekaterina Avramova | 1:01.95 | |||
| Viktoria Zeynep Güneş | 1:09.01 | |||
| Aleyna Özkan | 59.42 | |||
| Selen Özbilen | 55.34 |