Metrolink (California)

This article is about the commuter rail system. For the separate transportation authority, see Los Angeles Metro. For its local rail system, see Los Angeles Metro Rail.

Metrolink
A Metrolink train stopped at Chatsworth station
Overview
Locale	Southern California
Transit type	Commuter rail
Number of lines	8
Number of stations	68
Daily ridership	20,700 (weekdays, Q2 2026)
Annual ridership	6,063,500 (2025)
Chief executive	Darren Kettle
Headquarters	Wilshire Grand Center Los Angeles, California
Website	metrolinktrains.com
Operation
Began operation	October 26, 1992 (1992-10-26)
Operator	Alstom
Reporting marks	SCAX
Infrastructure managers	Southern California Regional Rail Authority BNSF Railway North County Transit District Union Pacific Railroad
Number of vehicles	60 locomotives, 274 rail cars, 3 DMU vehicles (Arrow), 1 ZEMU vehicle (Arrow)
Technical
System length	545.6 mi (878.1 km)
Track gauge	4 ft 8+1⁄2 in (1,435 mm) standard gauge
Top speed	90 mph (140 km/h)
System map  Lancaster   Ventura–East  Palmdale Oxnard Vincent Grade/Acton Camarillo Vista Canyon Moorpark Via Princessa Simi Valley Santa Clarita Santa Susana Tunnel Newhall Chatsworth San Fernando Tunnel Northridge Sylmar/San Fernando ( 2031) Van Nuys Pacoima (planned) Burbank Airport–South Sun Valley Burbank Airport–North via Downtown Burbank Glendale Central Maintenance Facility L.A. General Medical Center (proposed)  L.A. Union Station  Cal State L.A. (2028) Link US El Monte (limited) Commerce Baldwin Park (proposed) Pico Rivera Covina Norwalk/Santa Fe Springs Fairplex (fair days) Buena Park Pomona–North Fullerton Claremont (planned) Placentia Montclair Anaheim Upland Anaheim Canyon Rancho Cucamonga via ( 2029) Orange Fontana ( 2027) Santa Ana Rialto Tustin Montebello/​Commerce Irvine Industry Laguna Niguel/ Mission Viejo Pomona–Downtown San Juan Capistrano Ontario–East San Clemente Jurupa Valley/Pedley ( week- ends ) San Clemente Pier Corona–West  Oceanside  Corona–North Main Riverside–La Sierra  Riverside–Downtown  Riverside– Hunter Park/UCR Eastern Maintenance Facility Moreno Valley/March Field (planned) Mead Valley San Bernardino–Depot Perris–Downtown Arrow Maintenance Facility  Perris–South   San Bernardino–Downtown  San Bernardino–Tippecanoe Redlands–Esri  Redlands–Downtown   Redlands–University  Key Antelope Valley Line San Bernardino Line Inland Empire– Orange County Line Ventura County Line Orange County Line 91/Perris Valley Line Riverside Line Arrow two lines multiple lines  Terminus   Partial terminus  stations with Amtrak service All stations are accessible

Metrolink (reporting mark SCAX) is a commuter rail system in Southern California, serving Los Angeles, Orange, Riverside, San Bernardino, San Diego and Ventura counties. The system consists of eight lines and 68 stations operating on 545.6 miles (878.1 km) of track. This includes Arrow, which Metrolink operates under a contract with the San Bernardino County Transportation Authority (SBCTA).

In 2025, the system had a ridership of 6,063,500, or about 20,700 per weekday as of the second quarter of 2026.

Metrolink connects with Los Angeles County's Metro Rail and Metro Busway systems, North County Transit District's Coaster commuter rail and Sprinter hybrid rail services, and with Amtrak's Pacific Surfliner, Coast Starlight, Southwest Chief, Sunset Limited, and Texas Eagle inter-city rail services. Metrolink owns several hundred miles of track and also operates over track shared with freight railroads and other public agencies.

The system, founded in 1991 as the Southern California Regional Rail Authority (SCRRA) and adopting "Metrolink" as its moniker, started operation in 1992. Average weekday ridership was 42,928 as of 2017. The SCRRA contracts with Alstom both to operate the trains and to maintain the rolling stock (locomotives and passenger cars).