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 2025 population of 641. St. Charles is currently declining at a rate of -0.16% annually and its population has decreased by -0.77% since the most recent census, which recorded a population of 646 in 2020.

The average household income in St. Charles is $92,393 with a poverty rate of 6.31%.The median age in St. Charles is 33 years: 33 years for males, and 32.8 years for females.

641
Total Population
1,032
Density (mi²)
-1 -0.16%
Growth

St. Charles Population

St. Charles Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of St. Charles includes 93.71% White, 5.05% other race, and smaller percentages for Two or more races and multiracial populations.

Population by Race

White (93.7%)

Other race (5.1%)

Two or more races (1.2%)

Race
Population
Percentage (of total)
White83593.71%
Other race455.05%
Two or more races111.23%

St. Charles Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

St. Charles' average per capita income is $59,375. Household income levels show a median of $81,944. The poverty rate stands at 6.31%.

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$109,432-
Families$101,875$110,288
Households$81,944$92,393
Non Families$54,297$60,459

$59,375

Average Income

$81,944

Median Household Income

6.31%

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)