Muni Metro is a light rail 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 96,000 boardings per day as of the first quarter of 2025 and a total of 29,361,800 boardings in 2024, making it the sixth-busiest light rail system in the United States. From Wikipedia
