Rockdale is a village in Will County, Illinois, United States. The population was 1,888 at the 2000 census.
Rockdale is located at 41°30′27″N 88°6′55″W / 41.5075°N 88.11528°W / 41.5075; -88.11528 (41.507480, -88.115233). It is immediately south of the city of Joliet, and is about 36 miles southwest of Chicago.
According to the United States Census Bureau, the village has a total area of 0.8 square miles (2.0 km²), all of it land.