Ossian (pronounced|ˈosh-ain) is a city in Winneshiek County, Iowa, United States.

[6] According to the United States Census Bureau, the city has a total area of 1.11 square miles (2.87 km2), all land.

[7] As of the census of 2020,[9] there were 802 people, 346 households, and 213 families residing in the city.

There were 357 housing units at an average density of 334.2 per square mile (129.0/km2).

Hispanic or Latino persons of any race comprised 6.5% of the population.

There were 360 housing units at an average density of 324.3 per square mile (125.2/km2).

28.6% of all households were made up of individuals, and 12.7% had someone living alone who was 65 years of age or older.

There were 350 housing units at an average density of 319.5 per square mile (123.4/km2).

29.7% of all households were made up of individuals, and 17.9% had someone living alone who was 65 years of age or older.