Class I Railroad map of North America.

Click to enlarge.

(Kmusser, CC BY-SA 2.5 <>, via Wikimedia Commons)




Class I railroads are the largest rail carriers in the United States. In 1900, there were 132 Class I railroads, but as the result of mergers and bankruptcies, the industry has consolidated and in August of 2021, just seven Class I freight railroads remained. Now there are only six.

Note: This list also includes other important or noteworthy roads and transit systems.



Ahnapee and Western Railway

Akron, Canton and Youngstown Railroad

Alabama Great Southern Railroad

Alabama, Tennessee and Northern Railroad

Alabama and Vicksburg Railway

Alaska Railroad

Algoma Central Railway

Altamont Corridor Express

Alton Railroad


Amtrak California

Ann Arbor Railroad

Arizona Eastern Railroad

Arizona and New Mexico Railway

Arkansas and Missouri Railroad

Atchison, Topeka and Santa Fe Railway

     See also: Fred Harvey Company

Atlanta, Birmingham and Atlantic Railway

Atlanta, Birmingham and Coast Railroad

Atlanta and St. Andrews Bay Railway

Atlanta and West Point Railroad

Atlantic City Railroad

Atlantic Coast Line Railroad

Atlantic and Danville Railway

Atlantic and St. Lawrence Railroad

Auto-Train Corporation



Baltimore, Chesapeake and Atlantic Railroad

Baltimore and Ohio Railroad

Bangor and Aroostook Railroad

Bay Area Rapid Transit (BART)

Bay Coast Railroad


Beaumont, Sour Lake and Western Railway

Bessemer and Lake Erie Railroad

Big Four Railroad

Bingham and Garfield Railway



Bosques de Chihuahua

Boston and Albany Railroad

Boston and Maine Railroad

Buffalo Bayou, Brazos and Colorado Railway

Buffalo, Rochester and Pittsburgh Railway

Buffalo and Susquehanna Railroad

Burlington Northern Railroad

Burlington Refrigerator Express

Burlington-Rock Island Railroad

Butte, Anaconda and Pacific Railway



California Western Railroad


Cambria and Indiana Railroad

Canadian National Lines in New England

Canadian National Railways

Canadian Northern Railway

Canadian Pacific Lines in Maine

Canadian Pacific Lines in Vermont

Canadian Pacific Railway

CapMetro Rail

Carolina, Clinchfield and Ohio Railway

Carolina and Northwestern Railway

Central of Georgia Railway

Central New England Railway

Central Railroad of New Jersey

Central Railroad of Pennsylvania

Central Vermont Railway

Charleston and Western Carolina Railway

Chesapeake and Ohio Railway

Chessie System

Chicago and Atlantic Railway

Chicago and Alton Railroad

Chicago, Burlington and Quincy Railroad

Chicago, Detroit and Canada Grand Trunk Junction Railroad

Chicago and Eastern Illinois Railroad

Chicago and Erie Railroad

Chicago and North Western Transportation Company

Chicago Great Western Railroad

Chicago and Illinois Midland Railway

Chicago and Western Indiana Railroad

Chicago, Indiana and Southern Railroad

Chicago, Indianapolis and Louisville Railway

Chicago "L"

Chicago, Milwaukee and Puget Sound Railway

Chicago, Milwaukee, St. Paul and Pacific Railroad (The Milwaukee Road)

Chicago North Shore and Milwaukee Railroad

Chicago, Peoria and St. Louis Railroad

Chicago, Rock Island and Gulf Railway

Chicago, Rock Island and Pacific Railroad (CRIP)

Chicago, Rock Island and Pacific Railroad (RILX)

Chicago, St. Paul, Minneapolis and Omaha Railway

Chicago and Southern Railway

Chicago South Shore and South Bend Railroad

Chicago, Terre Haute and Southeastern Railway

Chicago Transit Authority

Cincinnati, Hamilton and Dayton Railway

Cincinnati, Indianapolis & Western Railroad

Cincinnati, Lebanon and Northern Railway

Cincinnati, New Orleans and Texas Pacific Railway

Cincinnati Northern Railroad

Cleveland, Akron and Cincinnati Railway

Cleveland, Akron and Columbus Railway

Cleveland, Cincinnati, Chicago and St. Louis Railway

Clinchfield Railroad

Coal and Coke Railway


Colorado Midland Railway

Colorado and Southern Railway

Colorado and Wyoming Railway

Columbus and Greenville Railroad

Columbus and Greenville Railway

Consolidated Rail Corporation


Conrail Shared Assets Operations

Copper River and Northwestern Railway

Cotton Belt

Cotton Belt Line

Cripple Creek and Colorado Springs Railroad

CSX Transportation

CT Rail

Cumberland Valley Railroad

Cumberland Valley and Martinsburg Railroad



Dallas Area Rapid Transit (DART)

DART Silver Line

DCTA A-train

Delaware and Hudson Railway

Delaware, Lackawanna and Western Railroad

Denver, Northwestern and Pacific Railway

Denver and Rio Grande Railroad

Denver and Rio Grande Western Railroad

Denver and Salt Lake Railroad

Denver and Salt Lake Railway

Detroit, Grand Haven and Milwaukee Railway

Detroit and Mackinac Railway

Detroit, Toledo and Ironton Railroad

Detroit and Toledo Shore Line Railroad

Duluth and Iron Range Railroad

Duluth, Missabe and Iron Range Railway

Duluth, Missabe and Northern Railway

Duluth, South Shore and Atlantic Railway

Duluth, Winnipeg and Pacific Railway

Duquesne Incline



El Paso and Southwestern Railroad

Elgin, Joliet and Eastern Railway

Erie Railroad

Erie Lackawanna Railway

Evansville, Indianapolis and Terre Haute Railway

Evansville and Terre Haute Railroad




Family Lines

Ferrocarril Chihuahua al Pacifico

Ferrocarril del Pacífico

Ferrocarriles Nacionales de México

Ferrocarriles Unidos del Sureste



Fitchburg Railroad

Florence and Cripple Creek Railroad

Florida East Coast Railway

Fonda, Johnstown and Gloversville Railroad

Fort Smith and Western Railroad

Fort Smith and Western Railway

Fort Worth and Denver Railway

Fort Worth and Denver City Railway

Fort Worth and Rio Grande Railway

Fruit Growers Express



Galveston, Harrisburg and San Antonio Railway

Genesee and Wyoming, Inc.

Georgia Railroad

Georgia and Florida Railroad

Georgia and Florida Railway

Georgia Southern and Florida Railway

GO Transit

Grand Canyon Railway

Grand Rapids and Indiana Railway

Grand Trunk Corporation

Grand Trunk Railway

Grand Trunk Western Railroad

Great Northern Railway

Green Bay and Western Railroad

Guilford Transportation

Gulf Coast Lines

Gulf, Colorado and Santa Fe Railway

Gulf, Mobile and Northern Railroad

Gulf, Mobile and Ohio Railroad

Gulf and Ship Island Railroad (G&SI)

Gulf and Ship Island Railroad (GSI)



Hocking Valley Railway

Houston East and West Texas Railway

Houston and Texas Central Railroad



Illinois and Midland Railroad

Illinois Central Railroad

Illinois Central Gulf Railroad

Illinois Terminal Company

Illinois Terminal Railroad

Indianapolis Southern Railroad

Intercolonial Railway

International-Great Northern Railroad

International and Great Northern Railroad

International and Great Northern Railway

International Railway of Maine[

Interstate Railroad

Iowa Central Railway

Iowa Interstate Railroad



Kanawha and Michigan Railway

Kansas City, Mexico and Orient Railway

Kansas City, Mexico and Orient Railway of Texas

Kansas City Southern Railway

Kansas City Southern de Mexico (KCSM)

Kansas, Oklahoma and Gulf Railway



Lake Erie and Western Railroad

Lake Shore and Michigan Southern Railway

Lake Superior and Ishpeming Railroad

Lehigh and Hudson River Railway

Lehigh and New England Railroad

Lehigh Valley Railroad

Litchfield and Madison Railway

Long Island Rail Road

   see also Long Island Rail Road History

Los Angeles and Salt Lake Railroad

Louisiana and Arkansas Railway

Louisiana, Arkansas and Texas Railway

Louisiana Railway and Navigation Company

Louisiana Railway and Navigation Company of Texas

Louisiana Western Railroad

Louisville, Henderson and St. Louis Railway

Louisville and Nashville Railroad



Maine Central Railroad


Maryland, Delaware and Virginia Railway

MBTA Commuter Rail


Metro-North Railroad

Mexican National Railroad (NdeM)

Michigan Central Railroad

Michigan Interstate Railway

Midland Valley Railroad

Milwaukee Road

Mineral Range Railroad

Minneapolis, Northfield and Southern Railway

Minneapolis and St. Louis Railway

Minneapolis, St. Paul and Sault Ste. Marie Railroad (Soo Line)

     See also: Soo Line Locomotives

Minneapolis, St. Paul and Sault Ste. Marie Railway

Minnesota and International Railway

Mississippi Central Railroad

Missouri and Arkansas Railway

Missouri-Illinois Railroad

Missouri-Kansas-Texas Railroad (Katy)

Missouri, Kansas and Texas Railway

Missouri-Kansas-Texas Railroad of Texas

Missouri, Kansas and Texas Railway of Texas

Missouri and North Arkansas Railroad

Missouri and North Arkansas Railway

Missouri, Oklahoma and Gulf Railway

Missouri Pacific Railroad

Mobile and Ohio Railroad

Monon Railroad

Monongahela Incline

Monongahela Railway

Montour Railroad

Morgan's Louisiana and Texas Railroad and Steamship Company


MUNI San Francisco Municipal Railway



Nashville, Chattanooga and St. Louis Railway

National Railroad Passenger Corporation (Amtrak).

National Railways of Mexico (NdeM)

Nevada Northern Railway

New Jersey and New York Railroad

New Jersey Central Railroad

New Jersey Transit (NJ Transit)

New Mexico Rail Runner Express

New Orleans Great Northern Railroad

New Orleans, Mobile and Chicago Railroad

New Orleans and Northeastern Railroad

New Orleans, Texas and Mexico Railroad

New Orleans, Texas and Mexico Railway

New York Central Railroad

New York Central and Hudson River Railroad

New York, Chicago and St. Louis Railroad (Nickel Plate Road)

New York Connecting Railroad

New York, New Haven and Hartford Railroad

New York, Ontario and Western Railway

New York, Philadelphia and Norfolk Railroad

New York, Susquehanna and Western Railway

Nickel Plate Road

Norfolk Southern Railway (1942-1982)

Norfolk Southern Railway

Norfolk and Western Railway

North Shore Line

Northern Alabama Railway

Northern Central Railway

Northern Pacific Railway

Northwestern Pacific Railroad



Oahu Railway and Land Company

Oklahoma City-Ada-Atoka Railway

Ontario Northland Railway

Oregon Electric Railway

Oregon Railroad and Navigation Company

Oregon Short Line Railroad

Oregon-Washington Railroad and Navigation Company



Pacific Electric Railway

Pacific Fruit Express

Pan Am Railways

Panhandle and Santa Fe Railway

PATCO Speedline

Pecos and Northern Texas Railway

Penn Central Transportation Company

Pennsylvania Railroad

Pennsylvania Company

Pennsylvania-Reading Seashore Lines

Peoria and Eastern Railway

Pere Marquette Railway

Perkiomen Railroad

Philadelphia, Baltimore and Washington Railroad

Philadelphia and Reading Railway

Piedmont and Northern Railway

Pittsburgh, Cincinnati, Chicago and St. Louis Railroad

Pittsburgh and Lake Erie Railroad

Pittsburg and Shawmut Railroad

Pittsburg, Shawmut and Northern Railroad

Pittsburgh and West Virginia Railway

Pittsburgh Light Rail

Pittsburgh Regional Transit

Port Reading Railroad



Quanah, Acme and Pacific Railway

Queen Anne’s Railroad

Quincy, Omaha and Kansas City Railroad



Reading Company

Richmond, Fredericksburg and Potomac Railroad

Rio Grande Southern Railroad

Rutland Railway



Sacramento Northern Railway

St. Joseph and Grand Island Railway

St. Louis, Brownsville and Mexico Railway

St. Louis, Iron Mountain and Southern Railway

St. Louis-San Francisco Railway (Frisco)

St. Louis, San Francisco and Texas Railway

St. Louis Southwestern Railway (Cotton Belt)

St. Louis Southwestern Railway of Texas

San Antonio and Aransas Pass Railway

San Antonio, Uvalde and Gulf Railroad

San Diego and Arizona Railway

San Diego and Arizona Eastern Railway

San Pedro, Los Angeles and Salt Lake Railroad

Santa Fe, Prescott and Phoenix Railway

Santa Fe Refrigerator Despatch

Savannah and Atlanta Railway

Savannah and Northwestern Railway

Seaboard Air Line Railroad

Seaboard Coast Line Railroad

Seaboard System Railroad


SEPTA Regional Rail

Soo Line Railroad

     See also: Soo Line Locomotives

South Shore Line

Southern Indiana Railway

Southern Kansas Railway of Texas

Southern Pacific Transportation Company

    See also History of the Southern Pacific

Southern Pacific Santa Fe Railway

    See also Santa Fe Pacific Corporation

Southern Railway

Southern Railway in Mississippi

Spokane and Inland Empire Railroad

Spokane International Railroad

Spokane International Railway

Spokane, Portland and Seattle Railway


Staten Island Rapid Transit Railway

Sunset Railroad

Syracuse, Binghamton and New York Railroad



Tennessee Central Railway

Texarkana and Fort Smith Railway

Texas Mexican Railway

Texas and New Orleans Railroad

Texas and Northern Railway

Texas and Pacific Railway



Tidewater Southern Railway

Toledo and Ohio Central Railway

Toledo, Peoria and Western Railroad

Toledo, Peoria and Western Railway

Toledo, St. Louis and Western Railroad

Toronto, Hamilton and Buffalo Railway

Transportación Ferroviaria Mexicana (TFM)

Trinity and Brazos Valley Railway

Trinity Railway Express



Ulster and Delaware Railroad

Union Pacific Railroad

Utah Railway



Vandalia Railroad

Via Rail Canada

Vicksburg, Shreveport and Pacific Railway

Virginia and Southwestern Railway

Virginian Railway



Wabash Railroad

Wabash Pittsburgh Terminal Railway

Washington Southern Railway

West Jersey and Seashore Railroad

Western Fruit Express

Western Railway of Alabama

Western Maryland Railway

Western Pacific Railroad

Wheeling and Lake Erie Railroad

Wheeling and Lake Erie Railway (1916-1988)

Wichita Falls and Northwestern Railway

Wichita Falls and Southern Railroad

Wichita Valley Railway

Wisconsin Central Ltd.

Wisconsin Central Railroad

Wisconsin Central Railway

Wisconsin Great Northern Railway



Yazoo and Mississippi Valley Railroad