18,900,000 in Nigeria (Johnstone 1993). Population total all countries: 19,380,800.
Most of Oyo, Ogun, Ondo, Osun, Kwara, and Lagos states; Kogi State, west LGAs; northeast Ondo State, Ào. Also in Benin, Sierra Leone, Togo, United Kingdom, United States.
2 (Provincial). De facto provincial language in southwestern region.
Akono, Ào, Awori, Aworo, Bunu (Bini), Egba, Ekiti, Gbedde, Igbonna, Ijebu, Ijesha, Ikale, Ila, Ilaje, Iworro, Jumu, Ondo, Owe, Oyo, Wo, Yagba.
2,000,000 L2 speakers.
Christian, Muslim, traditional religion.