Riverdale is a city located in Scott County, Iowa. As of the 2000 census, the city had a total population of 656.

Geography

\nRiverdale is located at 41°32'8" North, 90°28'2" West (41.535466, -90.467216)
1. According to the United States Census Bureau, the city has a total area of 5.6 km² (2.2 mi²). 4.6 km² (1.8 mi²) of it is land and 1.0 km² (0.4 mi²) of it is water. The total area is 17.89% water.

Demographics

\nAs of the
census of 2000, there are 656 people, 270 households, and 193 families residing in the city. The population density is 141.5/km² (366.8/mi²). There are 285 housing units at an average density of 61.5/km² (159.4/mi²). The racial makeup of the city is 97.87% White, 0.61% African American, 0.00% Native American, 0.15% Asian, 0.00% Pacific Islander, 0.46% from other races, and 0.91% from two or more races. 2.29% of the population are Hispanic or Latino of any race. There are 270 households out of which 30.0% have children under the age of 18 living with them, 52.6% are married couples living together, 13.3% have a female householder with no husband present, and 28.5% are non-families. 24.8% of all households are made up of individuals and 8.9% have someone living alone who is 65 years of age or older. The average household size is 2.43 and the average family size is 2.88. In the city the population is spread out with 26.1% under the age of 18, 8.7% from 18 to 24, 23.8% from 25 to 44, 23.0% from 45 to 64, and 18.4% who are 65 years of age or older. The median age is 40 years. For every 100 females there are 103.7 males. For every 100 females age 18 and over, there are 99.6 males. The median income for a household in the city is $32,656, and the median income for a family is $41,875. Males have a median income of $37,500 versus $28,194 for females. The per capita income for the city is $19,074. 16.7% of the population and 13.9% of families are below the poverty line. Out of the total people living in poverty, 32.5% are under the age of 18 and 5.5% are 65 or older.