Halliday is a city in Dunn County, North Dakota, United States.

[5][6] John S. Lesmeister, who served as the 30th North Dakota State Treasurer, grew up in Halliday.

43.0% of all households were made up of individuals, and 29% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 92.51% White, 6.17% Native American, and 1.32% from two or more races.

41.9% of all households were made up of individuals, and 17.9% had someone living alone who was 65 years of age or older.

None of the families and 8.8% of the population were living below the poverty line, including no under eighteens and 15.6% of those over 64.

This climatic region is typified by large seasonal temperature differences, with warm to hot (and often humid) summers and cold (sometimes severely cold) winters.