As of the census of 2000, there were 120,758 people, 49,820 households, and 30,838 families residing in the city of Cedar Rapids. The population density was 738.4/km² (1,912.6/mi²). There were 52,240 housing units at an average density of 319.4/km² (827.4/mi²). The racial makeup of the city was 91.86% White, 3.71% African American, 0.25% Native American, 1.77% Asian, 0.06% Pacific Islander, 0.55% from other races, and 1.79% from two or more races. Hispanic or Latino of any race were 1.71% of the population.

There were 49,820 households out of which 29.9% had children under the age of 18 living with them, 48.4% were married couples living together, 10.0% had a female householder with no husband present, and 38.1% were non-families. 30.2% of all households were made up of individuals and 9.7% had someone living alone who was 65 years of age or older. The average household size was 2.36 and the average family size was 2.96.

In the city the population was spread out with 24.5% under the age of 18, 10.8% from 18 to 24, 30.7% from 25 to 44, 20.9% from 45 to 64, and 13.1% who were 65 years of age or older. The median age was 35 years. For every 100 females there were 95.0 males. For every 100 females age 18 and over, there were 92.1 males.

The median income for a household in the city was $43,704, and the median income for a family was $54,286. Males had a median income of $37,217 versus $26,251 for females. The per capita income for the city was $22,589. About 4.9% of families and 7.5% of the population were below the poverty line, including 8.8% of those under age 18 and 6.9% of those age 65 or over.

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