Not all states have state censuses. My copy of the "Handy Book" is pretty ancient, so I don't know if the current edition tells all the state censuses or not. There is a book called "Search and Research" which will probably be available at many LDS Family History Centers. If I remember correctly, it gives details of what is included in each census. From what I have seen, I would guess most state censuses are available on film at the LDS FHC.