Grand Falls Plaza is a village in Newton County, Missouri, United States.

According to the United States Census Bureau, the village has a total area of 0.10 square miles (0.26 km2), all land.

The racial makeup of the village was 94.7% White, 3.5% Native American, and 1.8% from two or more races.

21.7% of all households were made up of individuals, and 13.1% had someone living alone who was 65 years of age or older.

17.5% of all households were made up of individuals, and 7.5% had someone living alone who was 65 years of age or older.

There were 3.4% of families and 8.8% of the population living below the poverty line, including 5.7% of under eighteens and 20.0% of those over 64.