Bill Roth has a decades-long history of community involvement in Santa Clara County, in the public sector as well as with non-profits. Here is a partial list of his activities in the community.
- School Site Council member, Williams Grade School (San José), 2002
- Member, Santa Clara County Health Advisory Commission, 2003-2006
- Member of the Water and Health Teams, International NGO, Chinandega, Nicaragua, 2010-present
- Volunteer, Sacred Heart Community Service, 2006-present
- Organizer, Grupo de Solidaridad Base Community, 2015-present.
- Board Treasurer, Sacred Heart Community Service 2018-2023
- Board Member and Chair of Audit and Development Committees, Gardner Health Services 2015-present
- Board Member and Member of the Finance Committee, Catholic Charities of Santa Clara County, 2023-present