St. Charles is a city in Kane and DuPage counties of Illinois, United States, and is roughly 40 miles west of Chicago on Illinois State Route 64. According to a 2004 census estimate, the city has a total population of 32,134. The official city slogan is Pride of the Fox, after the Fox River that runs through the center of town. St. Charles is part of a tri-city area along with Geneva and Batavia, all far-western suburbs of similar size and relative socioeconomic condition.
St. Charles is located at 41°54'49" North, 88°18'39" West (41.913744, -88.31085).
According to the United States Census Bureau, the city has a total area of 36.6 km2 (14.1 mi2). 36.2 km2 (14.0 mi2) of it is land and 0.4 km2 (0.2 mi2) of it is water. The total area is 1.13% water.
The following data is from the 2000 census:
The population density is 769.9/km2 (1,993.9/mi2). There are 11,072 housing units at an average density of 305.6/km2 (791.4/mi2). The racial makeup of the city is 93.81% White, 1.66% African American, 0.14% Native American, 1.79% Asian, 0.00% Pacific Islander, 1.66% from other races, and 0.94% from two or more races. 5.50% of the population are Hispanic or Latino of any race.
There are 10,351 households out of which 36.4% have children under the age of 18 living with them, 61.1% are married couples living together, 8.0% have a female householder with no husband present, and 28.3% are non-families. 23.5% of all households are made up of individuals and 8.0% have someone living alone who is 65 years of age or older. The average household size is 2.62 and the average family size is 3.13.
In the city the population is spread out with 27.8% under the age of 18, 7.4% from 18 to 24, 29.6% from 25 to 44, 25.0% from 45 to 64, and 10.2% who are 65 years of age or older. The median age is 37 years. For every 100 females there are 99.4 males. For every 100 females age 18 and over, there are 94.2 males.
The median income for a household in the city is $69,424, and the median income for a family is $82,828. Males have a median income of $55,864 versus $35,134 for females. The per capita income for the city is $33,969. 3.4% of the population and 2.1% of families are below the poverty line. Out of the total population, 3.4% of those under the age of 18 and 3.9% of those 65 and older are living below the poverty line.