This is a very difficult question to answer, since the way the games calculate a Pokémon's HP type makes it so that a specific type often doesn't have a clear-cut "range." When laid out visually (see link below), the types end up looking placed quite sporadically. So instead of figuring out a range for it, I just made a program that finds the HP type of every possible even/odd IV spread.
While there certainly are some observable patterns for some of the types, these patterns are broken too frequently to the point that, if you were to set ranges for the types, the rules regarding these ranges would likely have to be just as complex (if not more) as the original formula.
