* The seven rail agencies included in this statistic were selected based on an analysis of National Transit Database (NTD) records of ridership of U.S. rail transit agencies operating commuter rail, heavy rail and light rail systems. The rail transit agencies with the largest total rail ridership were then selected:
Chicago Transit Authority (CTA), Massachusetts Bay Transportation Authority (MBTA), Metropolitan Transportation Authority (MTA), New Jersey Transit Corporation (NJ TRANSIT), San Francisco Bay Area Rapid Transit District (BART), Southeastern Pennsylvania Transportation Authority (SEPTA), Washington Metropolitan Area Transit Authority (WMATA)
** Includes New York City Transit (NYCT), Long Island Rail Road (LIRR), Metro-North Railroad (MNCR).
The ranking shows the passenger boardings of the seven largest U.S. rail transit agencies in 2006. In that year, the Chicago Transit Authority (CTA) is on position **** of the ranking with a total number of *** million passenger boardings.
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Federal Transit Administration, & U.S. Department of Transportation. (April 15, 2009). Passenger boardings of the seven largest U.S. rail transit agencies* in 2006 (in millions) [Graph]. In ÌÇÐÄÆƽâ°æ. Retrieved August 03, 2026, from /statistics/185148/passenger-boardings-of-us-rail-transit-agencies-2006/
Federal Transit Administration, und U.S. Department of Transportation. "Passenger boardings of the seven largest U.S. rail transit agencies* in 2006 (in millions)." Chart. April 15, 2009. ÌÇÐÄÆƽâ°æ. Accessed August 03, 2026. /statistics/185148/passenger-boardings-of-us-rail-transit-agencies-2006/
Federal Transit Administration, U.S. Department of Transportation. (2009). Passenger boardings of the seven largest U.S. rail transit agencies* in 2006 (in millions). ÌÇÐÄÆƽâ°æ. ÌÇÐÄÆƽâ°æ Inc.. Accessed: August 03, 2026. /statistics/185148/passenger-boardings-of-us-rail-transit-agencies-2006/
Federal Transit Administration, and U.S. Department of Transportation. "Passenger Boardings of The Seven Largest U.S. Rail Transit Agencies* in 2006 (in Millions)." ÌÇÐÄÆƽâ°æ, ÌÇÐÄÆƽâ°æ Inc., 15 Apr 2009, /statistics/185148/passenger-boardings-of-us-rail-transit-agencies-2006/
Federal Transit Administration & U.S. Department of Transportation, Passenger boardings of the seven largest U.S. rail transit agencies* in 2006 (in millions) ÌÇÐÄÆƽâ°æ, /statistics/185148/passenger-boardings-of-us-rail-transit-agencies-2006/ (last visited August 03, 2026)
Passenger boardings of the seven largest U.S. rail transit agencies* in 2006 (in millions) [Graph], Federal Transit Administration, & U.S. Department of Transportation, April 15, 2009. [Online]. Available: /statistics/185148/passenger-boardings-of-us-rail-transit-agencies-2006/
