SEPTA

Southeastern Pennsylvania Transportation Authority (SEPTA)
Overview
Area served	Philadelphia and the surrounding Delaware Valley, including New Castle County, Delaware, and South Jersey
Locale	Delaware Valley
Transit type	Commuter rail light rail trolleys rapid transit trolleybus transit bus
Number of lines	196
Number of stations	290
Daily ridership	450,000
Annual ridership	223.5 million (2020)[1]
Chief executive	Leslie Richards (General Manager)
Headquarters	1234 Market Street, Philadelphia, Pennsylvania, U.S.
Website	septa.org
Operation
Began operation	November 1, 1965 (1965-11-01)
Number of vehicles	2,897 (2018)[3]
SEPTA system map Geographically-accurate map of SEPTA and connecting rail transit services. Includes Regional Rail, rapid transit, and selected interurban and suburban trolley lines. Does not include SEPTA's subway-surface lines or Girard streetcar.

The Southeastern Pennsylvania Transportation Authority (SEPTA) is a regional public transportation authority^[4] that operates bus, rapid transit, commuter rail, light rail, and electric trolleybus services for nearly four million people in five counties in and around Philadelphia, Pennsylvania. It also manages projects that maintain, replace and expand its infrastructure, facilities and vehicles.

SEPTA is the major transit provider for Philadelphia and the four surrounding counties, Delaware, Montgomery, Bucks, and Chester. It is a state-created authority, with the majority of its board appointed by the five Pennsylvania counties it serves.^[5] While several SEPTA commuter rail lines terminate in the nearby states of Delaware and New Jersey, additional service to Philadelphia from those states is provided by other agencies: the PATCO Speedline from Camden County, New Jersey is run by the Delaware River Port Authority, a bi-state agency; NJ Transit operates many bus lines and a commuter rail line to Philadelphia's Center City; and DART First State runs feeder bus lines to SEPTA stations in the state of Delaware.

SEPTA has the sixth-largest U.S. rapid transit system by ridership, and the fifth-largest overall transit system in the U.S. with about 302 million annual unlinked trips as of fiscal year 2018.^[6] It controls 290 active stations, over 450 miles (720 km) of track, 2,350 revenue vehicles, and 196 routes.^[7] It also oversees shared-ride services in Philadelphia and ADA services across the region, which are operated by third-party contractors, Amtrak, and NJ Transit.

SEPTA is the only U.S. transit authority that operates all of the five major types of terrestrial transit vehicles: regional commuter rail trains, rapid transit subway and elevated trains, light rail trolleys, trolleybuses, and motorbuses. This title was shared with Boston's Massachusetts Bay Transportation Authority, which also runs ferryboat service, until trolleybuses in Greater Boston were discontinued in 2023.^[8]