Walking in San Marcos is most enjoyable in the downtown area and along designated trails. However, the city is generally car-dependent, with limited pedestrian infrastructure in many neighborhoods. While walking can be a pleasant way to explore certain areas, the hot Texas summers and lack of shade in some parts may make it less comfortable during peak temperatures. Distances between key locations can also be a factor, as some destinations may be spread out. Overall, walking is best suited for specific areas rather than as a primary mode of transportation across the city.

Sykling i San Marcos understøttes av en blanding av sykkelfelt, felles stier og parkstier, noe som gjør det til en praktisk måte å navigere i visse områder på. Byen har over 160 kilometer med sykkelinfrastruktur som binder sammen ulike destinasjoner. Noen områder kan imidlertid kreve forsiktighet på grunn av trafikk eller begrensede sykkelvennlige ruter. Terrenget er generelt håndterlig, men avstanden mellom de viktigste stedene kan variere. Sykkelforholdene påvirkes av været, som kan være varmt og fuktig, så det er viktig med næring og solbeskyttelse.

Public transit in San Marcos includes bus services that connect various parts of the city and surrounding areas. The local bus system offers routes that are accessible and convenient for getting around town. Additionally, the Bobcat Shuttle provides free rides to students and the general public, with designated stops throughout the city. While buses are a practical option for many destinations, their schedules and routes may require planning ahead. The city’s infrastructure supports these services, making public transit a useful choice for navigating San Marcos efficiently.