Sapele
Warri
Abo
Asaba
Pop. 150,000
Igbuzor
Pop. 570,000
Illah
Obiariku
Otor Udu
Ozoro
Osubi
Kwale
Ethiope East
Ogwashi-Ukwu
Abraka
Ughelli
Ubulu-uku
Oghara
Onicha-Ugbo
Onicha-Olona
Igbodo
Bomadi
Idumuje-Unor
Orerokpe
Aniocha North
Ndokwa East
Ofagbe
Aviara
Ekakpamre
Agbarho
Ogbe-Ijoh
Koko
Eku
Forcados
Burutu
Ughelli North
Enwe
Patani
Igbuku
Onogboko
Issele-Uku
Utagba Ogbe
Obomkpa
Aniocha South
Ikolo
Okpe
Oshimili South
Oshimili North
Isoko South
Pop. 240,000
Warri South
Uvwie
Isoko North