Around 304 athletes from around 70 different countries competed at the games, with China topping the tables with most gold medals and medals won.

The event was held at the Alberca Olímpica Francisco Márquez located in Mexico City.

However, due to safety concerns, both Great Britain and Russia withdrew from the rearranged championships.

Athletes are allocated a classification for each event based upon their disability to allow fairer competition between athletes of similar ability.

The classifications for swimming are: Classifications run from S1 (severely disabled) to S10 (minimally disabled) for athletes with physical disabilities, and S11 (totally blind) to S13 (legally blind) for visually impaired athletes.

Host nation (Mexico) Many competitors won multiple medals at the 2017 Championships.

The below table lists the number of records broken by country.