Randalia is an unincorporated census designated place [2] in Fayette County, Iowa, United States.
[4] According to the United States Census Bureau, the city has a total area of 0.22 square miles (0.57 km2), all land.
There were 29 housing units at an average density of 155.4 per square mile (60.0/km2).
There were 37 housing units at an average density of 168.2 per square mile (64.9/km2).
27.6% of all households were made up of individuals, and 3.4% had someone living alone who was 65 years of age or older.
21.9% of all households were made up of individuals, and 6.3% had someone living alone who was 65 years of age or older.
There were 24.0% of families and 23.6% of the population living below the poverty line, including 34.6% of under eighteens and 41.7% of those over 64.
In October 2007, the city lost its post office, some time after losing its school and general store.