Alexander is a city in McKenzie County, North Dakota, United States.

32.0% of all households were made up of individuals, and 15% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 93.55% White, 5.99% Native American, 0.46% from other races.

The top 6 ancestry groups in the city are Norwegian (49.3%), German (32.7%), Irish (18.0%), English (8.3%), Swedish (7.4%), Dutch (4.1%).

About 15.9% of families and 20.3% of the population were below the poverty line, including 24.7% of those under the age of eighteen and 21.1% of those 65 or over.