San Marcos Transit

The City of San Marcos Transit division provides top quality, professional, effective and timely transit services to the community through our partnership with Capital Area Rural Transportation Systems (CARTS). 

CARTS recently introduced five new buses to the fleet serving San Marcos, now called SMTX THE BUS. SMTX THE BUS is a newer, cleaner, greener city bus system that will revolutionize San Marcos transit. The new buses double as a mobile office with free Wi-Fi on board. All buses are equipped with a bike rack for up to two bikes, space available on a first come first serve basis.

San Marcos "The Bus" routes will remain fare-free until further notice as a response to COVID-19.  

Picture of San Marcos "the Bus" vehicle

San Marcos "The Bus" COVID-19 Updates

  • Local service will run from 7 am - 6 pm 
  • Local routes will remain fare-free until further notice
  • Masks are recommended while riding local routes 
  • Social distancing is encouraged by skipping a seat between riders
  • Interurban routes will collect fares
  • Facemasks are required at the San Marcos Station and on Interurban routes

For more information, please visit CARTS or call (512) 805-7433

  1. News & Announcements

  1. Interurban winter break

    Interurban 1517 Winter Break Schedule Beginning Monday, Dec. 13, 2021, through Friday, Jan. 7, 202

    Beginning Monday, Dec. 13, 2021, through Friday, Jan. 7, 2022, CARTS Interurban 1517 will not be in service as part of its winter break schedule. Read on...
  2. Route 1 delays

    San Marcos Transit Delays on Bus Route 1

    Due to a shortage in regional bus drivers caused by the COVID-19 pandemic, some CARTS routes may not be able to maintain the current 30-minute pickup frequency. Read on...
  3. Interurban service changes

    CARTS Stops in Austin to Move During Construction

    Beginning August 16, 2021, the stop located at Plaza Saltillo for CARTS Interurban 1510 and 1517 will temporarily move to E. Seventh and Comal Streets (far side stop). Read on...
  4. CARTS route changes

    CARTS Transit Route Changes to Route

    The Capital Area Rural Transportation System (CARTS) interurban 1517 route has paused operations through Monday, May 31 Read on...
  5. Transit Earth day

    Celebrate Earth Day with Free CARTS Rides

    The Capital Area Rural Transportation System (CARTS) will celebrate Earth Day 2021 Read on...
  6. Federal transit funds image

    City Awarded $1.16 Million for Transit Operations

    The City of San Marcos has been awarded $1.16 million in federal funding Read on...
  7. Uhland Aquarena bus detour030121

    Uhland Road Improvements project Begins March 15th

    Beginning Monday, Mar. 15, the Engineering & Capital Improvements Department will begin construction on the Uhland Road Improvement Project. Read on...
  8. San Marcos &#34The Bus&#34 vehicle in front of bus station

    Local Transit Holiday Schedule Begins Dec. 14

    CARTS Interurban and Local San Marcos "The Bus" transit service Read on...