- Latitude: 38°42'03" N (+38.7008)
- Longitude: 90°20'59" W (-90.3497)
- Elevation: 655 feet above sea level
- Land area: 0.14 square miles (88.0 acres)
As the crow flies, Sycamore Hills is...
| Year | Population | Percent change |
|---|
| 1950 | 989 | -- |
| 1960 | 942 | -4.8% |
| 1970 | 821 | -12.8% |
| 1980 | 741 | -9.7% |
| 1990 | 667 | -10.0% |
| 2000 | 722 | +8.2% |