Oklahoma Chapter


Membership Drive for Sierra Club Oklahoma! Sign up now for $15!

There's strength in numbers so join today to help shape tomorrow's sustainable economy in our state! If every current Oklahoma Sierra Club member signed up just ONE friend or family member... we would move from 4,000 to 8,000 members! 

New Members get a MESSENGER BAG!


Contact Us!

Find out more about Oklahoma Sierra Club's activities across the state and in your very own community! We have OKSC Groups in Oklahoma City, Norman, and Tulsa, as well as OKSC Student Sections at both of our major state universities, OU and OSU.


Check out our online calendar below, or... 

... connect to us via our social media sites, or...

... you may call, text, or email our Oklahoma Chapter Chair:


Cheyenne Skye Branscum


(409) 354-8501 (Texas area code)


Mailing Address:

Oklahoma Sierra Club

P.O. Box 60644

Oklahoma City, OK 73146-0644


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