Three major train providers serve Southern California: Metrolink, Metro Rail and Amtrak. Each operates a different type of train service:
- Light Rail
These trains run above-ground, sometimes on city streets. Light rail in Southern California runs throughout Los Angeles County and is operated by Metro Rail.
Metro Rail runs the underground subway system in Los Angeles County, serving Downtown LA, the Mid-Wilshire area, Hollywood and North Hollywood.
- Commuter Rail
Metrolink runs commuter trains throughout Los Angeles, Orange, San Bernardino, Riverside and Ventura Counties.
- Long Distance Rail
Amtrak and Amtrak California run rail service throughout California and beyond.