Sun Metro Mass Transit Department, simply known as Sun Metro, is the public transportation provider that serves El Paso, Texas. Consisting of buses and paratransit service, it is a department of the City of El Paso, and the agency also serves the rest of El Paso County. The major hub is located at the Bert Williams Downtown Santa Fe Transfer Center in the surrounding block areas in Downtown El Paso. In 2025, the system had a ridership of 6,186,400, or about 21,400 per weekday as of the first quarter of 2026.