- Located at intersection MO 72 and Route A on the Dent County line
- Latitude: 37°27'19" N (+37.4554)
- Longitude: 91°12'37" W (-91.2103)
- Civil township: Carroll
- Land area: 0.65 square miles (412.9 acres)
As the crow flies, Bunker is...
| Year | Population | Percent change |
|---|
| 1910 | 556 | -- |
| 1970 | 447 | -19.6% |
| 1980 | 673 | +50.6% |
| 1990 | 390 | -42.1% |
| 2000 | 427 | +9.5% |