St. Charles Flag

St. Charles

County:
Madison County
County Seat:
No
Area (mi²):
0.621
State:
Iowa

St. Charles is a city located in Madison County, Iowa. St. Charles has a 2026 population of 649. St. Charles is currently growing at a rate of 0.15% annually and its population has increased by 0.46% since the most recent census, which recorded a population of 646 in 2020.

The median household income in St. Charles is $82,841 with a poverty rate of 7.49%. The median age in St. Charles is 36.2 years: 36.2 years for males, and 36.2 years for females. For every 100 females there are 97.0 males.

649
Total Population
1,045
Density (mi²)
1 0.15%
Growth

St. Charles Population

St. Charles Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202664910.15%
202564800%
202464860.93%
2023642-8-1.23%
202265020.31%
202164820.31%
202064640.62%
201964700%
2018647-4-0.61%
201765110.15%
2016650-12-1.81%
201566200%
201466210.15%
2013661-13-1.93%
2012674-7-1.03%
2011681284.29%
201068220.29%

Median Age

Overall: 36.2 years
Female: 36.2 years
Male: 36.2 years

St. Charles Adults

There are 712 adults, (109 of whom are seniors) in St. Charles.

Sex Ratio

Female: 464 (50.8%)
Male: 450 (49.2%)

Demographics

The racial composition of St. Charles includes 89.17% White, 7.66% other race, and smaller percentages for and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White81589.17%
Other race707.66%
Two or more races293.17%
Race
Population ↓
Percentage (of total)
Other race586.35%
White242.63%
Two or more races131.42%
Race
Population ↓
Percentage (of total)
White79186.54%
Two or more races161.75%
Other race121.31%

St. Charles Marital Status

Economics and Income Statistics

St. Charles ' average per capita income is $60,647. Household income levels show a median of $82,841. The poverty rate stands at 7.49%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Married Families$100,714-
Families$92,500$107,433
Households$82,841$95,111
Non Families$64,500$65,732

$60,647

Average Income

$82,841

Median Household Income

7.49%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)