We, at the Chatham Avalon Park Community Council, inform our residents of some terms as a rule of thumb when referring to Chatham:
Chatham enclave: The neighborhood between State Street and Cottage Grove Avenue and 75Th to 87Th Streets (used often when referring to the housing stock of homes and apartments);
Chatham corridor: The section of the Dan Ryan Expressway, I-94, from 75Th Street to 87Th Street;
Chatham perimeter: The commercial, retail and business perimeter around Chatham enclave that includes Chatham Village Mall, West Chatham Plaza, Chatham Ridge Plaza and Chatham Market;
Chatham proper: The people and housing stock inside Chatham enclave.