South Chicago, formerly known as Ainsworth, is one of the 77 well-defined community areas of Chicago, Illinois.
This chevron-shaped community is one of Chicago's 16 lakefront neighborhoods near the southern rim of Lake Michigan 10 miles south of downtown. A working-class neighborhood, it is bordered by East 79th Street on the north, South Chicago Avenue (the Chicago Skyway) on the southwest, a small stretch of East 95th Street on the south. With the Calumet River on the community's southeast side, South Chicago can be considered the literal gateway to the Calumet Region and the first among the four Chicago neighborhoods (East Side, Hegewisch and South Deering) that are considered by the locals as Chicago's Southeast Side. Particularly unknown because most of its streets run off the citywide grid, it also encompasses the unique Alphabet Avenues. The Southeast Side is a description that, although true, the city itself continues to resist including this neighborhood with all of Chicago's South Side communities.