Population (2000): 36,145 comprising 16,969 (46.9%) males and 19,176 (53.1%) females.
Land area: Black Hawk County, it covers an area of 28.3 square miles.
Zip code/s for the area: 50614, 50613.
Calculated median demographics: Resident age: 26.0 years | Household income: $40,226 | House value: $102,500