| Sport | Multiple sports |
|---|---|
| Competition Category | World Championships |
| Years | 1973—2025 |
| Editions | 22 |
| Competitors | 19146 |
| Countries | 218 |
From 2000 to 2010 World Open Water Swimming Championships have been held in years without World Aquatics Championships.
| Edition | Host City | Country | Held | Events | Competitors | Countries |
|---|---|---|---|---|---|---|
| 1973 World Aquatics Championships | Beograd | 31 August – 9 September 1973 | 37 | 723 | 45 | |
| 1975 World Aquatics Championships | Cali | 19 – 27 July 1975 | 37 | 674 | 38 | |
| 1978 World Aquatics Championships | West-Berlin | 20 – 28 August 1978 | 37 | 784 | 48 | |
| 1982 World Aquatics Championships | Guayaquil | 29 July – 8 August 1982 | 37 | 825 | 52 | |
| 1986 World Aquatics Championships | Madrid | 13 – 23 August 1986 | 41 | 1106 | 62 | |
| 1991 World Aquatics Championships | Perth | 3 – 13 January 1991 | 54 | 1094 | 59 | |
| 1994 World Aquatics Championships | Roma | 1 – 11 September 1994 | 46 | 1345 | 99 | |
| 1998 World Aquatics Championships | Perth | 8 – 18 January 1998 | 53 | 1346 | 118 | |
| 2001 World Aquatics Championships | Fukuoka | 16 – 29 July 2001 | 61 | 1412 | 134 | |
| 2003 World Aquatics Championships | Barcelona | 12 – 27 July 2003 | 62 | 1947 | 157 | |
| 2005 World Aquatics Championships | Montréal | 16 – 31 July 2005 | 65 | 1767 | 144 | |
| 2007 World Aquatics Championships | Melbourne | 18 March – 1 April 2007 | 65 | 2103 | 167 | |
| 2009 World Aquatics Championships | Roma | 17 July – 2 August 2009 | 65 | 2436 | 173 | |
| 2011 World Aquatics Championships | Shanghai | 16 – 31 July 2011 | 66 | 2103 | 178 | |
| 2013 World Aquatics Championships | Barcelona | 19 July – 4 August 2013 | 68 | 2128 | 177 | |
| 2015 World Aquatics Championships | Kazan | 24 July – 9 August 2015 | 75 | 2364 | 184 | |
| 2017 World Aquatics Championships | Budapest | 14 – 30 July 2017 | 75 | 2256 | 178 | |
| 2019 World Aquatics Championships | Gwangju | 12 – 28 July 2019 | 76 | 2414 | 192 | |
| 2022 World Aquatics Championships | Budapest | 17 June – 3 July 2022 | 74 | 2029 | 180 | |
| 2023 World Aquatics Championships | Fukuoka | 14 – 30 July 2023 | 75 | 2320 | 192 | |
| 2024 World Aquatics Championships | Doha | 2 – 18 February 2024 | 75 | 2235 | 200 | |
| 2025 World Aquatics Championships | Singapore | 11 July – 3 August 2025 | 77 | 2416 | 201 |
| Pos | Country | 🥇 Gold | 🥈 Silver | 🥉 Bronze | Total | |
|---|---|---|---|---|---|---|
| 1 | United States | 314 | 259 | 201 | 774 | |
| 2 | China | 221 | 136 | 107 | 464 | |
| 3 | Australia | 132 | 135 | 99 | 366 | |
| 4 | Russia | 106 | 74 | 62 | 242 | |
| 5 | Germany | 57 | 75 | 86 | 218 | |
| 6 | Italy | 53 | 73 | 83 | 209 | |
| 7 | East Germany | 51 | 44 | 27 | 122 | |
| 8 | Hungary | 44 | 37 | 38 | 119 | |
| 9 | Great Britain | 37 | 39 | 67 | 143 | |
| 10 | France | 37 | 38 | 39 | 114 | |
| 11 | Canada | 34 | 56 | 76 | 166 | |
| 12 | Netherlands | 25 | 42 | 36 | 103 | |
| 13 | Japan | 21 | 53 | 82 | 156 | |
| 14 | Sweden | 21 | 21 | 18 | 60 | |
| 15 | Spain | 18 | 46 | 39 | 103 | |
| 16 | Brazil | 17 | 15 | 19 | 51 | |
| 17 | Soviet Union | 16 | 28 | 28 | 72 | |
| 18 | South Africa | 14 | 9 | 18 | 41 | |
| 19 | Ukraine | 13 | 20 | 30 | 63 | |
| 20 | Romania | 7 | 2 | 9 | 18 | |
| 21 | Poland | 6 | 12 | 12 | 30 | |
| 22 | Neutral Participant | 6 | 9 | 8 | 23 | |
| 23 | Greece | 6 | 7 | 10 | 23 | |
| 24 | Tunisia | 6 | 3 | 4 | 13 | |
| 25 | Lithuania | 6 | 3 | 3 | 12 | |
| 26 | Denmark | 4 | 9 | 8 | 21 | |
| 27 | Zimbabwe | 4 | 5 | 0 | 9 | |
| 28 | South Korea | 4 | 2 | 6 | 12 | |
| 29 | Serbia | 4 | 2 | 1 | 7 | |
| 30 | Mexico | 3 | 17 | 22 | 42 | |
| 31 | Croatia | 3 | 3 | 4 | 10 | |
| 32 | Finland | 3 | 2 | 2 | 7 | |
| 33 | New Zealand | 2 | 6 | 8 | 16 | |
| 34 | Austria | 2 | 6 | 6 | 14 | |
| 35 | Belarus | 2 | 1 | 3 | 6 | |
| = | Yugoslavia | 2 | 1 | 3 | 6 | |
| 37 | Portugal | 2 | 1 | 1 | 4 | |
| 38 | Ireland | 2 | 0 | 0 | 2 | |
| 39 | Switzerland | 1 | 8 | 2 | 11 | |
| 40 | North Korea | 1 | 4 | 3 | 8 | |
| 41 | Belgium | 1 | 2 | 3 | 6 | |
| 42 | Hong Kong | 1 | 2 | 1 | 4 | |
| = | Norway | 1 | 2 | 1 | 4 | |
| 44 | Malaysia | 1 | 1 | 6 | 8 | |
| 45 | Bulgaria | 1 | 1 | 4 | 6 | |
| 46 | Colombia | 1 | 1 | 2 | 4 | |
| = | Costa Rica | 1 | 1 | 2 | 4 | |
| = | Serbia and Montenegro | 1 | 1 | 2 | 4 | |
| 49 | Kazakhstan | 1 | 0 | 1 | 2 | |
| 50 | Suriname | 1 | 0 | 0 | 1 | |
| 51 | Slovakia | 0 | 3 | 2 | 5 | |
| 52 | Czech Republic | 0 | 3 | 0 | 3 | |
| 53 | Cuba | 0 | 1 | 1 | 2 | |
| = | Czechoslovakia | 0 | 1 | 1 | 2 | |
| = | Iceland | 0 | 1 | 1 | 2 | |
| = | Jamaica | 0 | 1 | 1 | 2 | |
| 57 | Ecuador | 0 | 1 | 0 | 1 | |
| = | Israel | 0 | 1 | 0 | 1 | |
| = | Montenegro | 0 | 1 | 0 | 1 | |
| 60 | Egypt | 0 | 0 | 5 | 5 | |
| 61 | Argentina | 0 | 0 | 2 | 2 | |
| = | Singapore | 0 | 0 | 2 | 2 | |
| 63 | Bosnia and Herzegovina | 0 | 0 | 1 | 1 | |
| = | Kyrgyzstan | 0 | 0 | 1 | 1 | |
| = | Monaco | 0 | 0 | 1 | 1 | |
| = | Puerto Rico | 0 | 0 | 1 | 1 | |
| = | Trinidad and Tobago | 0 | 0 | 1 | 1 | |
| = | Venezuela | 0 | 0 | 1 | 1 | |