Madagascar is a country in Africa.
The Madagascar National Team lost to the team from Syria in the final match of the particularly raucous 1974 Quidditch World Cup (Pm).
It is also claimed that the earliest use of the Disarming Charm was by wizards from in Madagascar during the 11th century (BoS).
Madagascar is an island off the southeast side of Africa in the Indian Ocean. Its capital is Antananarivo. As they were participants the Quidditch World Cup tournaments in 1974, there will be a thriving wizard community there (Wikipedia).
From the Web
Writing by J.K. Rowling on Pottermore: History of the Quidditch World Cup
Tags: culture (Wizard) history international places Quidditch history