That is a debatable question. It depends on how you look at it and whether you believe in ghosts or not. For example, if a sink turns on, people might think it's a ghost but it may just be faulty water pipes.
Much supernatural phenomena can be explained simply. As the above answer suggests, it is what one's imagination makes of something that determines whether or not a place is 'haunted'. Most 'spooky' sounds and creaks have a natural cause, and even strange visual illusions can usually be explained in a practical way, and even recreated.
In short, the high school in question is most likely not haunted.
is virgil middle school haunted yes or no
Swanson middle school
Yeah, the auditorium is haunted.
No, not likely.
yes it is
Yes it is!
yes, it is haunted by a girl in a white dress
Quite possibly not.
YESS!!
No
probably not
Maybe