The chart above shows the number of subway riders in each region. The Northeast has more than four times the subway riders than all other regions combined.
- The difference between the region with the most subway riders, the Northeast, and the region with the least, the South, is 2,252,200,000 riders.
- The Northeast has 26.86 times the subway riders that the South does.
- The New York City Subway has more than three times the riders (1,727.3 million) of all the other regions combined (497.4 million).
- The second largest subway system by riders, the Chicago L, has more riders (230.2 million) than each of the West and the South as does the Washington Metro (229.6 million).
- Data is from 2017.
- Hawaii is currently working on building a subway system for Honolulu.
- All figures are rounded to the nearest hundredth.
- The Northeastern US consists of New York, Pennsylvania, New Jersey, Massachusetts, Maryland, Connecticut, New Hampshire, Delaware, Maine, Rhode Island, and Vermont.
- The Midwestern US consists of Illinois, Ohio, Michigan, Indiana, Minnesota, Wisconsin, Missouri, Iowa, Kansas, Nebraska, North Dakota, and South Dakota.
- The Western US consists of California, Washington, Colorado, Arizona, Oregon, Utah, Nevada, New Mexico, Hawaii, Idaho, Alaska, Montana, and Wyoming.
- The Southern US consists of Texas, Florida, Georgia, North Carolina, Virginia, Tennessee, Louisiana, South Carolina, Alabama, Kentucky, Oklahoma, Arkansas, Mississippi, and West Virginia.
The Northeast accounts for over four-fifths of all subway riders in the country at 82.47%. It, with the Midwest make up over nine-tenths of the subway riders in the country at 90.79%.
The New York City Subway makes up 73.84% of the Northeast's total riders, the Chicago L makes up 97.50% of the Midwest's total, Atlanta's MARTA accounts for 77.38% of the South's total, and San Francisco's BART accounts for 74.23% of the West's total riders.
Wikipedia. 2019. "List of Metro Systems." Accessed February 24, 2019. https://en.wikipedia.org/wiki/List_of_metro_systems.