Listowel is an unincorporated community in Ontario, Canada, located in the Municipality of North Perth. Incorporated as the Town of Listowel in 1875, it was dissolved in 1998 following amalgamation with several other communities in the northern section of Perth County. Its population was 9,539 at the Canada 2021 Census in a land area of 6.73 square kilometres; at the time there were 3,910 occupied dwellings.