MARC is a commuter rail system in the Baltimore–Washington metropolitan area. MARC is administered by the Maryland Transit Administration (MTA) and operated under contract by Alstom and Amtrak on track owned by CSX Transportation (CSXT) and Amtrak. In 2021, the system had a ridership of 1,291,900, or about 5,900 per weekday as of the fourth quarter of 2021.
Rockville station is an intermodal train station located in downtown Rockville, Maryland, United States. It is served by the Washington Metro Red Line, MARC Brunswick Line commuter trains, and Amtrak Capitol Limited intercity trains.
College Park–University of Maryland is a Washington Metro station in Prince George's County, Maryland on the Green Line and Yellow Line. It also serves MARC's Camden Line, though only select trains stop at the station.
Greenbelt is a Washington Metro and MARC station in Prince George's County, Maryland on the Green and Yellow lines, being the northeastern terminus of both. MARC commuter rail trains on the Camden Line also stop at Greenbelt on a set of tracks parallel to the Metro tracks.
BWI Airport Station is an intermodal passenger station in Linthicum, Maryland near Baltimore–Washington International Airport (BWI). It is served by Amtrak Northeast Corridor intercity trains, MARC Penn Line regional rail trains, and several local bus lines.
West Baltimore station is a regional rail station located in the western part of the City of Baltimore, Maryland along the Northeast Corridor. It is served by MARC Penn Line trains. The station is positioned on an elevated grade above and between the nearby parallel West Mulberry and West Franklin Streets at 400 North Smallwood Street. Three large surface lots are available for commuters. The station is not accessible, with two low-level side platforms next to the outer tracks, but MTA Maryland plans to later renovate the station with accessible platforms and entrances.
Baltimore Light RailLink is a light rail system serving Baltimore, Maryland, United States, as well as its surrounding suburbs. It is operated by the Maryland Transit Administration. In downtown Baltimore, it uses city streets. Outside the central portions of the city, the line is built on private rights-of-way, mostly from the defunct Northern Central Railway, Baltimore and Annapolis Railroad and Washington, Baltimore and Annapolis Electric Railway. In 2021, the system had a ridership of 2,718,100, or about 8,500 per weekday as of the fourth quarter of 2021.
The Brunswick Line is a MARC commuter rail line between Washington, D.C., and Martinsburg, West Virginia, with a branch to Frederick, Maryland. It primarily serves the northern and western suburbs of Washington. The line, MARC's second longest at 74 miles, is operated under contract to MARC by Alstom and runs on CSX-owned track, including the Metropolitan, Old Main Line, and Cumberland Subdivisions. It is the successor to commuter services provided by the Baltimore & Ohio Railroad (B&O), which date to the mid-19th century.
The Camden Line is a MARC commuter rail line that runs for 39 mi (63 km) between Union Station, Washington, D.C., and Camden Station, Baltimore, Maryland, over the CSX Capital Subdivision, and Baltimore Terminal Subdivision. It is one of the oldest commuter lines in the United States still in operation. The Baltimore & Ohio Railroad began running commuter service from Baltimore to Ellicott City over part of the current line's trackage on May 24, 1830, and the line was extended to Washington on August 25, 1835. The Camden Line is the shortest MARC line and along with the Brunswick Line, is the successor to commuter services operated by the B&O. As of 2019, the Camden Line is a weekday-only service.
The Penn Line is a MARC commuter rail service running from Union Station in Washington, D.C., to Perryville, Maryland, along the far southern leg of the Northeast Corridor. However, the great majority of trains terminate at Baltimore's Penn Station. It is MARC's busiest and only electric line. With trains running at speeds of up to 125 miles per hour (201 km/h), it is the fastest commuter line in the United States. The service is operated by Amtrak under contract to the Maryland Transit Administration. MARC sets the schedules, owns most of the stations, and controls fares, while Amtrak owns and maintains the right-of-way, supplies employees to operate trains, and maintains the rolling stock. It is by far the busiest of MARC's three lines, with twice as many trains and twice as many passengers as the Brunswick and Camden lines combined.
Camden Station, now also referred to as Camden Street Station, Camden Yards, and formally as the Transportation Center at Camden Yards, is a train station at the intersection of South Howard and West Camden Streets in Baltimore, Maryland, and is adjacent to Oriole Park at Camden Yards. It is served by MARC commuter rail service and local Light Rail trains. Camden Street Station was originally built beginning in 1856, continuing until 1865, by the Baltimore and Ohio Railroad as its main passenger terminal and early offices/ headquarters in Baltimore and is one of the longest continuously-operated terminals in the United States. Its upstairs offices were the workplace of famous Civil War era B&O President John Work Garrett (1820–1884). The station and its environs were also the site of several infamous civil strife actions of the 19th century with the Baltimore riot of 1861, on April 18–19, also known as the Pratt Street Riots and later labor strife in the Great Railroad Strike of 1877.
Halethorpe is a passenger rail station located in the unincorporated community of Halethorpe, Maryland on the Northeast Corridor. MARC Penn Line trains serve the station; Amtrak trains pass through but do not stop.
Bowie State is a regional rail station on the Northeast Corridor, located adjacent to the campus of Bowie State University in Bowie, Maryland. It is served by MARC Penn Line commuter rail trains. The station is located on a three-track section of the Northeast Corridor, with two side platforms next to the outer tracks.
Boyds is a passenger rail station on the MARC Brunswick Line in Boyds, Maryland, with direct service to Washington, D.C. and Martinsburg, WV. The station is located west of a bridge over the MD 117-121 multiplex. Parking is available only on the south side of the tracks.
Riverdale is a passenger rail station on the MARC Camden Line between Union Station in Washington, DC and Baltimore's Camden Station. The station is part of the Riverdale Park Historic District, which has been part of the National Register of Historic Places since 2002.
Laurel Race Track is a passenger rail station on the MARC Camden Line between the District of Columbia's Washington Union Station and Baltimore's Camden Station. The station was built in 1911, by the Baltimore and Ohio Railroad to serve the Laurel Park race track, as is indicated by the station's eponymous name.
Savage is a passenger rail station on the MARC Camden Line between Union Station and Baltimore's Camden Station. It is officially located at 9009 Dorsey Run Road in Savage, Maryland, however Dorsey Run Road runs over the railroad tracks as well as Brock Bridge Road, which runs along the south side of the tracks and is a street-level with the station. The station straddles the line between Howard County and Anne Arundel County, with the southbound platform and parking garage located in Howard County and the northbound platform in Anne Arundel County.
Jessup is a passenger rail station on the MARC Camden Line between Washington, DC and Baltimore's Camden Station. It was built on 8 Old Jessup Road, east of the embankment of the Jessup Road bridge over the Camden Line, a former Baltimore and Ohio Railroad line.
Dorsey is a passenger rail station on the MARC Camden Line between Washington, DC and Baltimore's Camden Station. The station is located at Exit 7 on Maryland Route 100, a.k.a.; the Paul T. Pitcher Memorial Highway. It was built by MARC in 1996 as a replacement for a former Baltimore and Ohio Railroad station located next to a 14-foot-10-inch (4.52 m) clearance bridge over Maryland Route 103. The former B&O station site is now a condominium development.
St. Denis is a passenger rail station on the MARC Camden Line in the Maryland town of the same name. While the small station is the line's closest station to its terminus at Camden Yards in Baltimore, it has low ridership and is designated a flag stop: trains do not stop unless the engineer sees passengers who are waiting to be picked up, or the conductor is aware that there are passengers who want to be dropped off.
RTA 302 
3.3%(MARC)
