Stanwood is a city in Cedar County, Iowa, United States.

[6] According to the United States Census Bureau, the city has a total area of 0.72 square miles (1.86 km2), all land.

[7] As of the census of 2020,[9] there were 637 people, 268 households, and 177 families residing in the city.

There were 288 housing units at an average density of 361.9 per square mile (139.7/km2).

Hispanic or Latino persons of any race comprised 1.7% of the population.

There were 295 housing units at an average density of 409.7 per square mile (158.2/km2).

26.2% of all households were made up of individuals, and 11.3% had someone living alone who was 65 years of age or older.

There were 297 housing units at an average density of 462.9 per square mile (178.7/km2).

25.4% of all households were made up of individuals, and 12.2% had someone living alone who was 65 years of age or older.