Griswold is a city in Cass County, Iowa, United States.

[4] According to the United States Census Bureau, the city has a total area of 0.62 square miles (1.61 km2), all land.

[5] As of the census of 2020,[7] there were 994 people, 433 households, and 251 families residing in the city.

There were 499 housing units at an average density of 819.3 per square mile (316.3/km2).

Hispanic or Latino persons of any race comprised 2.6% of the population.

There were 507 housing units at an average density of 817.7 per square mile (315.7/km2).

33.0% of all households were made up of individuals, and 17.7% had someone living alone who was 65 years of age or older.

There were 491 housing units at an average density of 799.1 per square mile (308.5/km2).

31.4% of all households were made up of individuals, and 18.6% had someone living alone who was 65 years of age or older.