The village is recognized throughout the area as a diverse community, based on income and race. Large, pricey homes make up newer subdivisions, modestly priced and sized homes make up the older and downtown sections of Bartlett, while apartment blocks and a mobile home park cater to the lower-income residents of the village.
As of the census of 2000, there were 36,706 people, 12,179 households, and 9,986 families residing in the village. The population density was 2,477.9 people per square mile (956.9/km²). There were 12,356 housing units at an average density of 834.1/sq mi (322.1/km²). The racial makeup of the village was 87.23% White, 1.98% African American, 0.14% Native American, 7.82% Asian, 0.02% Pacific Islander, 1.35% from other races, and 1.45% from two or more races. Hispanic or Latino of any race were 5.51% of the population.
There were 12,179 households out of which 48.6% had children under the age of 18 living with them, 72.5% were married couples living together, 7.0% had a female householder with no husband present, and 18.0% were non-families. 14.2% of all households were made up of individuals and 3.3% had someone living alone who was 65 years of age or older. The average household size was 3.00 and the average family size was 3.36.
In the village the population was spread out with 31.7% under the age of 18, 5.4% from 18 to 24, 37.8% from 25 to 44, 19.5% from 45 to 64, and 5.6% who were 65 years of age or older. The median age was 34 years. For every 100 females there were 97.5 males. For every 100 females age 18 and over, there were 94.7 males.
According to a 2007 estimate, the median income for a household in the village was $86,629, and the median income for a family was $93,547. Males had a median income of $60,182 versus $36,494 for females. The per capita income for the village was $29,652. About 1.2% of families and 1.9% of the population were below the poverty line, including 1.5% of those under age 18 and 4.5% of those age 65 or over.