Of course, all Christians believe in the paranormal. Jesus walked on water - that's paranormal. He rose from the dead, did miracles, healed the sick, etc. Can't be a Christian without believing in the paranormal. However, there's a lot I do not believe in when it comes to New Age religionists and their beliefs in the paranormal (i.e., tarot cards to tell the future, homeopathic medicine to heal illness, astrology, etc. etc.). Ghosts are a more difficult subject. On the one hand, ghosts can exist if they are merely humans in a spiritual body. At the moment of my mother's death she (her ghost?) visited me in a dream to say goodbye. But, I do not think you are referring to any of my examples - you are talking about ghosts hanging around in people's homes. I'm very skeptical of such stories, but I recognize I could be wrong.
I do believe that that's more supernatural than paranormal.