SunLine Transit Agency
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 SunLine New Flyer XHE40 hydrogen fuel cell bus | |
| Founded | July 1, 1977 |
|---|---|
| Headquarters | 32-505 Harry Oliver Trail Thousand Palms, California |
| Service type | bus service, paratransit |
| Routes | 10 |
| Fleet | 68 buses, 27 paratransit |
Daily ridership | 8,500 (weekdays, Q2 2026) |
Annual ridership | 2,742,300 (2025) |
| Website | sunline |
SunLine Transit Agency is a transit operator in Riverside County, California, United States, providing bus service to more than 3.5 million passengers per year in the Palm Springs Area. Service extends into San Bernardino Transit Center during peak hours. In 2025, the system had a ridership of 2,742,300, or about 8,500 per weekday as of the second quarter of 2026.