Derby, Iowa
There were 47 households, of which 31.9% had children under the age of 18 living with them, 53.2% were married couples living together, 8.5% had a female householder with no husband present, 4.3% had a male householder with no wife present, and 34.0% were non-families. 25.5% of all households were made up of individuals, and 10.7% had someone living alone who was 65 years of age or older. The average household size was 2.45 and the average family size was 2.97.