St. Charles is home to 32,854 people in Illinois. This is an unusually credentialed place: 52% of adults have a four-year degree. That puts it in the top 5% of US cities for household income. That is roughly 37% ahead of the Illinois median. Density works out to 2,272 people per square mile. The poverty rate is 4.4%, under the national 12.5%.
At a glance
Wealthier
median household income $114,300, above the US median
US median: $82,259
Older
median age 41.5
US median: 38.9
More educated
52% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Unique to this place
What stands out about St. Charles
What changed most since 1990
Median home value (2024 dollars)$329,049 → $377,400(+15%)US over the same years: +67%
St. Charles's population equals 6.4% of Kane County's. Its number of households without a car equals 3.8% of the county's. Its number of residents living in poverty equals 3.6% of the county's.
Shares are "alone or in combination": a person with both Medicare and Medicaid counts in each, so categories overlap and do not sum to 100%.
Section 09 · Service history
Veterans
Veterans by period of service, 2024
Gulf War (2001 or later)23.5%(246)
US avg: 26.4%
Gulf War (1990s)18.9%(198)
US avg: 24.3%
Vietnam era43.4%(455)
US avg: 33.1%
Korean War4.6%(48)
US avg: 4.5%
World War II2.3%(24)
US avg: 1%
Share of the 1,048 veterans here. A veteran who served across eras counts in each, so shares can total more than 100%. Peacetime-only service is included in the total but not shown as an era.
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Over time
St. Charles, decade by decade
St. Charles population, inflation-adjusted income and home value, education, and diversity by year
Year
Population
Median household income
Median home value
Bachelor's degree+
Diversity score
1990
22,512
$111,975
$329,049
36.1%
9.2
2000
27,896
$126,467
$353,037
42.9%
22.4
2010
32,974
$111,236
$443,368
47.1%
37.3
2020
33,081
$124,130
$367,248
47.7%
45.2
2024
32,854
$114,300
$377,400
52.0%
52.6
Census years come from the decennial census and the latest year from the American Community Survey, so part of any change between those two rows can reflect the different surveys. Dollar figures are adjusted for inflation to 2024 dollars; a figure ending in "+" was at the Census Bureau's reporting cap that year. The diversity score runs from 0 to 100; see how it's calculated.
