Pluto is in the Kupier belt.
The asteroid belt is the circumstellar disc in the Solar System located roughly between the orbits of the planets Mars and Jupiter . Pluto ( minor-planet designation : 134340 Pluto ) is a dwarf planet in the Kuiper belt , a ring of bodies beyond Neptune . After 1992 , its planethood was questioned following the discovery of several objects of similar size in the Kuiper belt .