Wolof is spoken by nearly 4 million first-language speakers, in at least six territories. The vast majority are in Senegal, and most of those who don't speak it as a first language in Senegal speak it as a second language.
Thereafter, the greatest concentration of speakers are in Gambia, where it is popular in the capital Banjul. It is also spoken around the southern coastal regions of Mauritania. It has spread further afield; being spoken in France, the United Kingdom and Canada.