Plaza is a city in Mountrail County, North Dakota, United States.

The business district is built around a central town square, city park or "plaza".

A key feature of the plaza is a recently completed large covered gazebo.

46.4% of all households were made up of individuals, and 10.7% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 91.02% White, 8.38% Native American and 0.60% Asian.

38.8% of all households were made up of individuals, and 25.0% had someone living alone who was 65 years of age or older.

About 4.1% of families and 7.3% of the population were below the poverty line, including none of those under the age of eighteen and 26.7% of those 65 or over.