List of United States light rail systems

The following is a list of all light rail systems in the United States. Also included are some of the urban streetcar/trolley systems that provide regular public transit service, ones with data available from the American Public Transportation Association's Ridership Reports. This list does not include statistics for metro/rapid transit systems. Daily and annual ridership figures are based on "average weekday unlinked passenger trips". References with supplementary ridership figures are included in the System column.

Systems excluded from ridership table

The following light rail systems have been excluded from the ridership table above:

System	Largest city served	Opened	Route length	Reason for exclusion from Ridership table
San Francisco cable car system	San Francisco, CA	1873		APTA does not provide ridership figures for this system.
Lowell National Historical Park Trolley System	Lowell, MA	1984		Primarily a tourist system. APTA does not provide ridership figures.
Galveston Island Trolley	Galveston, TX	1988		Primarily a tourist system. APTA does not provide ridership figures.
Kenosha Streetcars	Kenosha, WI	2000		Primarily a tourist system. APTA does not provide ridership figures.
Metro Streetcar	Little Rock, AR	2004		Primarily a tourist system. APTA does not provide ridership figures.