How many Churches are addressed in the Book of Revelations?

Answer 1

"The mystery of the seven stars which you saw in My right hand, and the seven golden lampstands: The seven stars are the angels of the seven churches, and the seven lampstands which you saw are the seven churches." (Revelation 1:20).

Seven is the Biblical number of completion. These 7 churches were on an ancient mail route that the Apostle Paul visited and began the Church of God in each. The lampstands represent 'light' which is Christ's word in these Churches. They also represent 'Church Eras' leading up to the 2nd Coming of Christ. The final two of these Eras are Philadelphia and Laodicean which some believe we are now living in these times.

Answer 2

Seven: Pergamos, Thyatira, Sardis, Smyrna, Philadelphia, Ephesus, and Laodicea.