How many Igbo villages were there in things fall apart?

There were 9 Igbo villages in Things Fall Apart. The main ones were:

Umuofia: Okonkwo's home.

Mbanta: Okonkwo's motherland.

Abame: The slaughtered village.

Mbaino: The village who killed an Umuofian clanswoman.

Also:

Ire: Home of Ogbuefi Ndulue.