Luana is a city in Clayton County, Iowa, United States.

[3] Luana is the site of a large cheese factory of Swiss Valley Farms, a cooperative owned by 625 dairy producers in four states.

[7] According to the United States Census Bureau, the city has a total area of 1.05 square miles (2.72 km2), all land.

There were 131 housing units at an average density of 118.9 per square mile (45.9/km2).

Hispanic or Latino persons of any race comprised 6.0% of the population.

There were 119 housing units at an average density of 113.3 per square mile (43.7/km2).

33.3% of all households were made up of individuals, and 18.5% had someone living alone who was 65 years of age or older.

There were 116 housing units at an average density of 110.5 per square mile (42.7/km2).

33.6% of all households were made up of individuals, and 12.1% had someone living alone who was 65 years of age or older.

About 4.5% of families and 9.9% of the population were below the poverty line, including 6.4% of those under the age of eighteen and 5.7% of those 65 or over.