- Location: Phelps County, Missouri
- Legal status: Third-class city
- Population: 3,704 (Change since 1990: +13.8%)
- Latitude: 37°59'50" N (+37.9972)
- Longitude: 91°36'51" W (-91.6142)
- Elevation: 1088 feet above sea level
- Land area: 2.8 square miles
- Water area: 0.01 square miles (3.8 acres)
As the crow flies, St. James is...
| Year | Population | Percent change |
|---|
| 1900 | 575 | -- |
| 1910 | 1,100 | +91.3% |
| 1920 | 1,117 | +1.5% |
| 1930 | 1,294 | +15.8% |
| 1940 | 1,812 | +40.0% |
| 1950 | 1,996 | +10.2% |
| 1960 | 2,384 | +19.4% |
| 1970 | 2,929 | +22.9% |
| 1980 | 3,328 | +13.6% |
| 1990 | 3,256 | -2.2% |
| 2000 | 3,704 | +13.8% |