Linked from
The 6 pages that link to Igbo language, each with the reason it gives.
AbaRelated: Igbo is widely used in the cultural and commercial setting around Aba.
Abia StateRelated: It is widely spoken alongside English in Abia.
Anambra StateRelated: It is the principal indigenous language across much of Anambra State.
UmuahiaRelated: It is widely used in and around Umuahia alongside English.