Rocky Ridge, formerly a village, disincorporated on June 8, 1993. The population in 1990 was 362.
- Latitude: 37°55'49" N (+37.9303)
- Longitude: 90°14'18" W (-90.2383)
- Elevation: 700 feet above sea level
- Public Land Survey: Survey #884 (T. 37 N., R. 7 E.)
- Civil township: Union
As the crow flies, Rocky Ridge is...
| Year | Population | Percent change |
|---|
| 1980 | 281 | -- |
| 1990 | 362 | +28.8% |