- Located at the western junction of US 62 and US 67 on the Black River
- Latitude: 36°15'41" N (+36.2614)
- Longitude: 90°58'16" W (-90.9711)
- Elevation: 300 feet above sea level
- Civil township: Demun
- Land area: 7.4 square miles
- Water area: 0.21 square miles (133.3 acres)
As the crow flies, Pocahontas is...
| Year | Population | Percent change |
|---|
| 1880 | 325 | -- |
| 1890 | 507 | +56.0% |
| 1900 | 967 | +90.7% |
| 1910 | 1,547 | +60.0% |
| 1920 | 1,806 | +16.7% |
| 1930 | 1,896 | +5.0% |
| 1940 | 3,028 | +59.7% |
| 1950 | 3,840 | +26.8% |
| 1960 | 3,665 | -4.6% |
| 1970 | 4,544 | +24.0% |
| 1980 | 5,995 | +31.9% |
| 1990 | 6,151 | +2.6% |
| 2000 | 6,518 | +6.0% |