Based in Chicago, Illinois, the Sierra Club Illinois Chapter is a local division of the national Sierra Club, an organization founded in the late 19th century that now has over 3 million members across North America. The ultimate goal of the Sierra Club Illinois Chapter and its 30,000 members and volunteers is to ensure a healthy environment for animals, plants, and people across Illinois, "a state rich in natural beauty."

The local groups that make up the Illinois Chapter of the Sierra Club include over a dozen small chapters that encompass the entire state, from the Blackhawk and Woods and Wetlands groups in northern Illinois to the Kaskaskia and Shawnee groups at the southernmost part of the state. Led by volunteers who guide region-specific efforts that affect their area, these local groups host events, programs, fundraisers, and outings, as well as engage in campaigns to promote change at local, state, and national levels. In addition to leading political, energy, and water campaigns, to name a few, the Sierra Club Illinois Chapter encourages people to get outside and regularly hosts outdoor events.

Flexible Sierra Club jobs offered by the Illinois Chapter in the past include part-time and temporary jobs, including long-term apprenticeships and internships. As an employer, the Sierra Club Illinois Chapter seeks candidates with demonstrated analytical, computer, and communication skills, as well as the ability to work well with the public and diverse colleagues and volunteers. The branch shares its office with select staff employed by the Midwest Region Sierra Club.

Based in Chicago, Illinois, the Sierra Club Illinois Chapter is a local division of the national Sierra Club, an organization founded in the late 19th century that now has over 3 million members across North America. The ultimate goal of the Sierra Club Illinois Chapter and its 30,000 members and volunteers is to ensure a healthy environment for animals, plants, and people across Illinois, "a state rich in natural beauty."

The local groups that make up the Illinois Chapter of the Sierra Club include over a dozen small chapters that encompass the entire state, from the Blackhawk and Woods and Wetlands groups in northern Illinois to the Kaskaskia and Shawnee groups at the southernmost part of the state. Led by volunteers who guide region-specific efforts that affect their area, these local groups host events, programs, fundraisers, and outings, as well as engage in campaigns to promote change at local, state, and national levels. In addition to leading political, energy, and water campaigns, to name a few, the Sierra Club Illinois Chapter encourages people to get outside and regularly hosts outdoor events.

Flexible Sierra Club jobs offered by the Illinois Chapter in the past include part-time and temporary jobs, including long-term apprenticeships and internships. As an employer, the Sierra Club Illinois Chapter seeks candidates with demonstrated analytical, computer, and communication skills, as well as the ability to work well with the public and diverse colleagues and volunteers. The branch shares its office with select staff employed by the Midwest Region Sierra Club.