- Latitude: 38°41'43" N (+38.6953)
- Longitude: 90°18'47" W (-90.3131)
- Land area: 0.21 square miles (132.8 acres)
As the crow flies, Greendale is...
| Year | Population | Percent change |
|---|
| 1960 | 1,107 | -- |
| 1970 | 972 | -12.2% |
| 1980 | 853 | -12.2% |
| 1990 | 426 | -50.1% |
| 2000 | 722 | +69.5% |