Demographics
As of the census2 of 2000, there were 85,616 people, 23,115 households, and 18,099 families residing in the town. The population density was 14,645.2 people per square mile (5,650.7/km²). There were 24,640 housing units at an average density of 4,214.9/sq mi (1,626.2/km²). The racial makeup of the town was 48.27% White American (19.60% non-Hispanic white), 1.12% African American, 0.89% Native American, 0.97% Asian, 0.04% Pacific Islander American, 44.71% from other races, and 4.01% from two or more races. 77.44% of the population were Hispanic or Latino of any race, with 68.4% of Mexican descent.
 The top five non-Hispanic ancestries reported in Cicero as of the 2000 census were Polish (4.7%), Irish (3.7%), German (3.7%), Italian (3.0%) and Czech (2.3%).4
 There were 23,115 households out of which 50.7% had children under the age of 18 living with them, 56.1% were married couples living together, 13.7% had a female householder with no husband present, and 21.7% were non-families. 17.5% of all households were made up of individuals and 8.1% had someone living alone who was 65 years of age or older. The average household size was 3.70 and the average family size was 4.18.
 The age distribution was 34.6% under the age of 18, 12.7% from 18 to 24, 31.9% from 25 to 44, 13.6% from 45 to 64, and 7.1% who were 65 years of age or older. The median age was 26 years. For every 100 females there were 105.8 males. For every 100 females age 18 and over, there were 105.9 males.
 The median income for a household in the town was $42,044, and the median income for a family was $47,883. Males had a median income of $27,424 versus $21,398 for females. The per capita income for the town was $12,489. About 13.2% of families and 15.5% of the population were below the poverty line, including 19.5% of those under age 18 and 7.8% of those age 65 or over.