Havana is a city in Sargent County, North Dakota, United States.

According to the United States Census Bureau, the city has a total area of 0.38 square miles (0.98 km2), all land.

There were 47 housing units at an average density of 123.7 per square mile (47.8/km2).

37.1% of all households were made up of individuals, and 5.7% had someone living alone who was 65 years of age or older.

25.6% of all households were made up of individuals, and 11.6% had someone living alone who was 65 years of age or older.

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