Habitat for Humanity - This club, supported by International Habitat for Humanity, serves the greater community by assisting in the creation of homes in the community. Email: habitat@stmarys-ca.edu

Peace Incorporated-PINC's mission is to engage members in communication between the sexes, explore gender stereotypes, and participate in social action and justice activities.
Email: pinc@stmarys-ca.edu

Peer Health Exchange- Peer Health Exchange is a national non-profit organization that trains college students to teach a comprehensive health curriculum in public high schools that lack health education.
Email: phe@stmarys-ca.edu

Project Green -Students involved with Project Green promote sustainable initiatives including recycling, reducing waste, and awareness of global warming. Email: green@stmarys-ca.edu

Rotaract- This club allows students to develop professional and leadership skills while promoting the rights of others and addressing the needs of the community. They work in cooperation with the local Rotary club. Email: rotaract@stmarys-ca.edu

(SUP)port Justice - Students United for Peace (SUP)ports Justice through awareness and activism on the SMC campus. They promote advocacy and make the SMC community knowledgeable of the social injustices taking place worldwide. Email: sup@stmarys-ca.edu

SMC Democrats – The Club seeks to bring the values and principles of the Democratic Party to light amongst members of the SMC community.  Email: smcdem@stmarys-ca.edu

SMC Republicans – The Club aims to bring equal political representation of the principles of the Republican Party among members of the SMC community. Email: smcrepub@stmarys-ca.edu