Oyo
Oyo State is an inland state in southwestern Nigeria. Its capital is Ibadan, the third most populous city in the country and formerly the second most populous city in Africa. Wikipedia
postal code: 200001
Area: 10,986 mi²
Founded: February 3, 1976
Capital: Ibadan
HDI (2018): 0.632; medium · 10th of 37
ISO 3166 code: NG-OY