At the 2010 census there were 34,496 people, 13,280 households, and 8,459 families living in the village. The population density was 4,106.5 people per square mile (1,585.6/km). There were 13,697 housing units at an average density of 1,630.5 per square mile (629.6/km). The racial make-up of the village was 76.68% White, 2.44% African American, 0.23% Native American, 9.26% Asian, 0.07% Pacific Islander, 9.18% from other races, and 2.13% from two or more races. Hispanic or Latino of any race were 20.68%.
Of the 13,280 households 31.5% had children under the age of 18 living with them, 51.1% were married couples living together, 9.0% had a female householder with no husband present, and 36.3% were non-families. 30.1% of households were one person and 8.2% were one person aged 65 or older. The average household size was 2.57 and the average family size was 3.26.
The age distribution was 23.4% under the age of 18, 9.4% from 18 to 24, 35.2% from 25 to 44, 21.8% from 45 to 64, and 10.2% 65 or older. The median age was 34 years. For every 100 females, there were 96.8 males. For every 100 females age 18 and over, there were 94.7 males.
The median household income was $55,491 and the median family income was $63,088. Males had a median income of $41,586 versus $32,262 for females. The per capita income for the village was $24,989. About 2.7% of families and 5.3% of the population were below the poverty line, including 6.3% of those under age 18 and 7.9% of those age 65 or over.
Chicago Executive Airport, a busy general aviation airport, is located in Wheeling and Prospect Heights and jointly run by both villages. Formerly known as Palwaukee Municipal Airport, it is the third busiest airport in Illinois, after Chicago's O'Hare and Midway airports.