Alderman Ronnie L. Mosley was sworn into the Chicago City Council on May 15, 2023, as the Alderman of the 21st Ward—Chicago’s largest ward—and the youngest elected member of the new council. A native son of the area he now represents, Alderman Mosley brings both a deep personal connection and a wealth of experience in policy organizing and civic engagement to City Hall.

His journey in public service began at just 14 years old, when he interned with a community development organization serving the Auburn Gresham neighborhood. Since then, he has worked across every level of government, building coalitions between residents and decision-makers to expand opportunity and improve quality of life. Becoming alderman has allowed him to dedicate himself full-time to the community that raised him.

Alderman Mosley’s vision for the 21st Ward centers on community-led strategies that drive systemic change and lasting progress. He serves as Vice-Chair of the City Council’s Committee on Economic, Capital & Technology Development and sits on several other key committees, including Budget & Government Operations; Finance; and Zoning, Landmarks, and Building Standards.

Outside of his official duties, Alderman Mosley is married to his college sweetheart and is a proud paw-rent to their Goldendoodle. A devoted son and brother, he remains grounded in family and unwavering in his commitment to building a thriving 21st Ward.