The Kingdom of Heaven has no physical boundaries. Wherever there is someone walking in obedience to Jesus Christ, there you will find the Kingdom.
Jesus said, “Where two or three are gathered together in my name, there am I in the midst of them.” Matthew 18:20
The kingdom of God is within you. Luke 17:21
The Kingdom is bound by righteousness and light. Outside are unrighteousness and darkness. Colossians 1:12-13
Jesus said, “My kingdom is not of this world: if my kingdom were of this world, then would my servants fight . . . but now is my kingdom not from hence.” John 18:36
Where people receive the Truth, the Kingdom is near unto them. John 4:23
The Kingdom of God is at hand. Matthew 4:17
You must be born again to see the Kingdom. John 3:3