Muni Metro is a semi-metro system serving San Francisco, California, United States. Operated by the San Francisco Municipal Railway, a part of the San Francisco Municipal Transportation Agency, Muni's light rail lines saw an average of 87,000 boardings per day as of the third quarter of 2024 and a total of 24,324,600 boardings in 2023, making it the sixth-busiest light rail system in the United States.
