Till now there are 5 officially recognized dwarf planets in our solar system.
They are -----
1. Ceres , located in asteroid belt between Mars and Jupiter.
2. Pluto , located in Kuiper belt
3. Haumea , located in Kuiper belt
4. Makemake, located in Kuiper belt
5. Eris, dwarf planet slightly larger than Pluto in Kuiper belt.
However, there are many more dwarf planets waiting to be discovered in and beyond Kuiper belt !!!
Othet potential dwarf planets include ----
Sedna Orcus Quaoar Varuna Gonggong