Final answer:
Most of the Solar System's asteroids are located in the asteroid belt between the orbits of Mars and Jupiter.
Step-by-step explanation:
The majority of the Solar System's asteroids are located in the asteroid belt, which is between the orbits of Mars and Jupiter. The main belt extends from 2.2 to 3.3 AU from the Sun. The gap between the orbits of Mars and Jupiter is large enough to allow for stable orbits of small bodies in the asteroid belt.