Bunker is a town in Dent and Reynolds counties in the U.S. state of Missouri.

[5] According to the United States Census Bureau, the town has a total area of 0.66 square miles (1.71 km2), all land.

There were 196 housing units at an average density of 297.0 per square mile (114.7/km2).

The racial makeup of the town was 99.26% White, 0.25% Native American, and 0.49% from two or more races.

33.5% of all households were made up of individuals, and 15.6% had someone living alone who was 65 years of age or older.

31.8% of all households were made up of individuals, and 15.3% had someone living alone who was 65 years of age or older.