Ferguson is a city in Marshall County, Iowa, United States.

[4] According to the United States Census Bureau, the city has a total area of 0.26 square miles (0.67 km2), all land.

There were 51 housing units at an average density of 199.2 per square mile (76.9/km2).

Hispanic or Latino persons of any race comprised 6.2% of the population.

There were 59 housing units at an average density of 226.9 per square mile (87.6/km2).

20.0% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older.

There were 56 housing units at an average density of 224.8 per square mile (86.8/km2).

29.1% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older.

There were 4.4% of families and 4.3% of the population living below the poverty line, including 15.4% of under eighteens and none of those over 64.