Become a Member

Join Sierra Club Today!

Sierra Club is one of the oldest and most influential environmental organizations in America. It is also one of the largest grassroots, volunteer-driven environmental organizations. When you join the Sierra Club, you are eligible to protect the planet directly through your active participation in the organization.
In California, Sierra Club has 13 local chapters, all of which are represented in the State Capitol by Sierra Club California staff and volunteers. As a Sierra Club member in California, you are automatically enrolled as a member of Sierra Club California and eligible to participate in all of our activities.
If you haven't joined the Sierra Club already, you can start by filling out our membership form by clicking here.
Already a Member? Make Your Membership Count:
There are many ways to get involved and make your Sierra Club membership more powerful. To learn more, click here.
The best way to be a part of our work, is to join our activist list. To do that, click here.