Rockbridge is a village in Greene County, Illinois, United States.

[4] Illinois Route 267 passes along the eastern edge of the village, leading north 5 miles (8 km) to Greenfield and south 8 miles (13 km) to Medora.

Carrollton, the Greene County seat, is 13 miles (21 km) to the northwest via Routes 267 and 108.

According to the 2021 census gazetteer files, Rockbridge has a total area of 0.74 square miles (1.92 km2), all land.

29.31% of all households were made up of individuals, and 20.69% had someone living alone who was 65 years of age or older.