The city has played a lasting role in the Christian evangelism of the Southeast of Nigeria since the British brought the Church Missionary Society (CMS), an evangelism vehicle of then Church of England used to plant what today has become the Anglican Church of Nigeria. In 1923, the Seventh-day Adventist Church (SDA Church) was established . The Seventh-day Adventists are well known for their Biblical faith, quality hospitals and good educational institutions.
St. Michael's Cathedral Anglican Church was founded in the late 1920s although St. James Parish on the city edge (Umule) is arguably the oldest church because the diocese's first mass was celebrated in 1916. Most of the Primary and Secondary Schools mentioned above were founded by the CMS along with each of their Churches.
The Catholic Church was to follow and also created many churches; St. Joseph Cathedral, which for a long time was the biggest church in the city became its bishop's seat. Like the Anglican church, the Catholic Church attached schools to their churches with St. Joseph Girl Secondary School being of the best schools in the city.
With the arrival of the Pentecostal brand of Christianity (the evangelicals) in Nigeria, the city got an enormous share for itself. The Assemblies of God Church, being among the earliest, the Deeper Christian Life Ministry, etc. had massive following in the early 1980s. African Gospel church was found by most Bishop Ogudoro the Founder of African Gospel church. African Gospel church is divided into 10 districts. The present Bishop of African Gospel church is Bishop Uzoaru (2009).
In the late 1960s, a group of Nigerians discovered information on The Church of Jesus Christ of Latter-day Saints and established branches, but the Utah based church did not establish any official presence until the late 1970s when blacks were allowed to hold priesthood authority. Aba has several congregations and a temple.
Muslims and mosques are also
