* The Kuiper Belt: This is a disc-shaped region beyond the orbit of Neptune, extending from about 30 to 55 astronomical units (AU) from the Sun. It is home to icy bodies, including many comets.

* The Oort Cloud: This is a hypothetical spherical cloud of icy bodies thought to surround the solar system at a vast distance, roughly 10,000 to 100,000 AU from the Sun. It is thought to be the source of long-period comets.

While these are the main regions where comets reside, they can also be found in other parts of the solar system, such as:

* The inner solar system: When comets get pulled closer to the Sun by its gravity, they become visible from Earth. These are short-period comets, usually originating from the Kuiper Belt.

* Near-Earth Objects (NEOs): Some comets can pass close to Earth and become classified as NEOs.

So, while the Kuiper Belt and Oort Cloud are the main "homes" of comets, they can be found in other parts of the solar system depending on their orbits and interactions with the Sun's gravity.