Emerson is a city in Mills County, Iowa, United States.

[2] Emerson was a shipping point on the Chicago, Burlington and Quincy Railroad.

[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 204 housing units at an average density of 800.6 per square mile (309.1/km2).

There were 203 housing units at an average density of 780.8 per square mile (301.5/km2).

30.1% of all households were made up of individuals, and 18.8% had someone living alone who was 65 years of age or older.

There were 208 housing units at an average density of 829.5 per square mile (320.3/km2).

29.2% of all households were made up of individuals, and 16.9% had someone living alone who was 65 years of age or older.