Inland Empire–Orange County Line

The Inland Empire–Orange County (IEOC) Line is a commuter rail line run by Metrolink in Southern California. It runs from San Bernardino through Orange County to Oceanside in northern San Diego County. It is the only Metrolink line not to serve Union Station in Los Angeles nor cross the Los Angeles River.

Inland Empire-Orange County Line
Metrolink train in Riverside
Overview
Status	Operating
Owner	BNSF Railway (San Bernardino–Anaheim Canyon) SCRRA (Anaheim Canyon–OC/SD County Line) NCTD (OC/SD County Line–Oceanside)
Locale	Inland Empire, Orange County, and San Diego County
Termini	San Bernardino Transit Center (Downtown) Oceanside
Stations	16
Service
Type	Commuter rail line
System	Metrolink
Operator(s)	Metrolink
Daily ridership	4,262 (2012)
Technical
Line length	100.1 miles (161.1 km)
Character	Elevated and surface-level
Track gauge	4 ft 8 1⁄2 in (1,435 mm)
Operating speed	90 mph (140 km/h) (top)[1] 39 mph (63 km/h) (average)[2]
Route map San Bernardino to Redlands–Downtown (planned 2022) San Bernardino-Downtown San Bernardino San Bernardino to Los Angeles Union Station 91/Perris Valley to Perris–South Riverside–Downtown Riverside to Los Angeles Union Station Riverside–La Sierra Corona–North Main Corona–West 91/Perris Valley to Los Angeles Union Station Anaheim Canyon Orange County & Amtrak Pacific Surfliner to Los Angeles Union Station Orange Santa Ana ( 2021) Tustin Irvine Laguna Niguel/​Mission Viejo San Juan Capistrano San Clemente San Clemente Pier Metrolink weekends only Oceanside NCTD Coaster & Amtrak Pacific Surfliner to San Diego all stations are accessible

The IEOC Line, Metrolink's sixth line to be introduced, opened between Riverside and San Juan Capistrano on October 2, 1995.[3] Following the completion of track improvements the line opened to San Bernardino on March 4, 1996.[4] With the exception of the Anaheim Canyon station, the line shares all of its stations with the 91 Line, the Orange County Line, the Riverside Line, or the San Bernardino Line.

As of July 2016, eight trains in each direction serve the stations from San Bernardino - Downtown to Laguna Niguel/Mission Viejo on weekdays.[5] The remainder of the trains servicing the IEOC Line cover more to all of the stations, except San Clemente Pier, which is only serviced on the weekends.[5]

In July 2006, the Orange County Transportation Authority created weekend service on the IEOC and Orange County Lines. As of August 2016, the IEOC Line schedule has two trains on Saturday and two on Sunday, each servicing every station, including San Clemente Pier.[5]

Metrolink's Downtown San Bernardino extension to San Bernardino Transit Center opened on December 16, 2017.[6]