How many miles of TRAIN TRACK is there in the U.S?

total railway mileage is about 140,249.

here is a more detailed breakdown in case you are interested

type of rr - # of companies - miles

CLASS 1 - 7 - 95,664

REGIONAL - 30 - 15,388

LOCAL - 523 - 29,197

total = - 560 - 140,249

class 1 railroads are your mainline, well-known railroads such as BNSF, CSX, UP, AMTK, and so on. these huge companies operate most of the national network, and bring in over 44 Billion $ / year in revenue.

(sorry columns dont seem to line up well here)

For standard gauge track i believe there is about 141,000 miles of track used for hauling freight.As for narrow gauge lines i have no idea.One of the rail buffs here might know.

Indeed, U.S. rail mileage sits around 140,000 today, or 140,490 exactly (including Canadian mileage operated in the U.S.) according to the AAR (Association of American Railroads).

millions