List of United States rapid transit systems explained

See also: List of North American rapid transit systems. The following is a list of all heavy rail rapid transit systems in the United States. It does not include statistics for bus or light rail systems; see: List of United States light rail systems by ridership for light rail systems. All ridership figures represent unlinked passenger trips, so line transfers on multi-line systems register as separate trips. The data is provided by the American Public Transportation Association's Ridership Reports.

Note: ridership does not mean unique passengers, it means total number of trips.

	System	Transit agency	City/area served	Annual ridership,	Avg. ridership	data-sort-type="number"	System length	data-sort-type="number"	Avg. boardings per mile	Opened	data-sort-type="number"	Stations	data-sort-type="number"	Lines
1	New York City Subway	NYCTA^[1]	New York City			^[2]		1904	^[3]	26
2	Washington Metro	WMATA	Washington metropolitan area					1976^[4]	98	6
3	Chicago "L"	CTA	Chicago					1892	146^[5]	8
4	MBTA subway ("The T")^[6]	MBTA	Boston			^[7]		1901	53	3
5	PATH	PANYNJ	Manhattan, Hudson County, Newark			^[8] ^[9]		1908^[10]	13	4^[11]
6	Bay Area Rapid Transit (BART)^[12]	BART	San Francisco Bay Area					1972^[13]	50^[14]	7^[15]
7	SEPTA Metro^[16]	SEPTA	Philadelphia			^[17] ^[18]		1907^[19]	75^[20]	3
8	MARTA rail	MARTA	Atlanta					1979^[21]	38^[22]	4
9	Metro Rail	LACMTA	Los Angeles					1993	16	2
10	Metrorail	Miami-Dade Transit	Miami					1984^[23]	23^[24]	2
11	Staten Island Railway	SIRTOA	Staten Island					1860^[25]	21	1
12	PATCO Speedline	PATCO	Philadelphia, Camden County					1936^[26]	13	1
13	RTA Rapid Transit	GCRTA	Cleveland			^[27]		1955^[28]	18	1
14	Tren Urbano	ATI	San Juan			^[29]		2004	16	1
15	Baltimore Metro SubwayLink	MTA	Baltimore		^[30]	^[31]		1983^[32]	14	1
16	Skyline	Honolulu DTS	Honolulu	614,800	3,700		343	2023^[33]	9	1

See also

• List of metro systems
• List of North American rapid transit systems by ridership
• List of tram and light rail transit systems
• List of suburban and commuter rail systems
• List of United States light rail systems by ridership
• List of North American light rail systems by ridership
• List of United States commuter rail systems by ridership
• List of United States local bus agencies by ridership

Notes and References

1. Agency is a subsidiary of the Metropolitan Transportation Authority.
2. Web site: Comprehensive Annual Financial Report for the Years Ended December 31, 2018 and 2017 . . 156 . June 26, 2019 . January 15, 2021.
3. Web site: The MTA Network - New York City Transit at a Glance . . August 29, 2014.
4. Web site: About Metro . Washington Metropolitan Area Transit Authority . 2014 . August 28, 2014 . December 2, 2016 . https://web.archive.org/web/20161202204655/http://www.wmata.com/about_metro/ . dead .
5. Web site: Facts at a Glance . . May 17, 2013.
6. System also includes the Green Line and Ashmont–Mattapan High Speed Line light rail lines; ridership data for these light rail lines is not included in statistics shown here.
7. Web site: Ridership and Service Statistics, Fourteenth Edition 2014 . . pdf . 3–4, 6 . July 2014 . August 31, 2014 . dead . https://web.archive.org/web/20140912053503/http://www.mbta.com/uploadedfiles/documents/2014%20BLUEBOOK%2014th%20Edition.pdf . September 12, 2014 .
8. Web site: Greenhouse Gas (GHG) and Criteria Air Pollutant (CAP) Emission Inventory (EI) for the Port Authority of New York & New Jersey: 2008 Summary and 2006-2008 Trends . . pdf . 4 . June 2010 . September 27, 2012 . February 10, 2017 . https://web.archive.org/web/20170210050002/https://www.panynj.gov/about/pdf/2008-GHG-Inventory-Summary.pdf . dead .
9. Web site: Facts & Info - PATH - The Port Authority of NY & NJ . . 2013 . July 18, 2013 . November 29, 2019 . https://web.archive.org/web/20191129234922/http://www.panynj.gov/path/facts-info.html . dead .
10. Web site: History . . June 6, 2012.
11. Web site: Maps & Schedule . . June 6, 2012 . December 3, 2012 . https://web.archive.org/web/20121203072937/http://www.panynj.gov/path/maps-schedules.html . dead .
12. Figures only include BART's five rapid transit lines, and not the system's AGT line to Oakland Airport nor the eBART line.
13. Web site: Rider recalls first day of BART passenger service on Sept. 11, 1972 . . September 11, 2009 . June 19, 2012.
14. Web site: System Facts . . January 19, 2023.
15. Web site: BART - Schedules By Line . . 2019 . March 3, 2019.
16. System also includes light rail lines. Ridership data for such lines is not included in statistics given.
17. Web site: SEPTA Route Statistics 2014 . Southeastern Pennsylvania Transportation Authority (SEPTA) Service Planning Department . pdf . 9, 13, 221 . Spring 2014 . August 31, 2014 . dead . https://web.archive.org/web/20130524014002/http://www.septa.org/reports/pdf/route-statistics.pdf . May 24, 2013 .
18. Web site: Media Guide . . pdf . 7, 11 . 2013 . August 31, 2014.
19. Web site: SEPTA 'Elebrates' End Of Project . . September 11, 2009.
20. Web site: SEPTA Operating Facts Fiscal Year 2013 . . pdf . 4–6 . June 30, 2013 . August 31, 2014.
21. Web site: About MARTA: MARTA's Past & Future . . June 24, 2012.
22. Bombardier Partners with Atlanta to Improve Track Worker Protection with TrackSafe Technology . . April 17, 2012 . June 24, 2012.
23. Web site: Miami-Dade Transit History . . June 26, 2012.
24. Web site: Metrorail . . August 27, 2012.
25. News: Staten Island Rail Car Derails in Tottenville . Sewell . Chan . Nate . Schweber . . December 26, 2008 . September 28, 2012.
26. Web site: A History of Commitment . . June 6, 2012.
27. Web site: 2013 Annual Report - RTA Facts . . October 31, 2013 . September 5, 2014.
28. Web site: RTA History . . September 28, 2012.
29. Web site: Project Profiles: Tren Urbano . . September 28, 2012.
30. This is the Average Daily Ridership not Average Weekday Ridership.
31. Web site: Metro Subway . . September 28, 2012.
32. Web site: 2010-2011 MTA Media Guide . . pdf . September 28, 2012.
33. Web site: Skyline Rail Operations. . September 19, 2023.