O'Fallon township

County:: St. Charles County
County Seat:: No
Area (mi²):: 10.884
State:: Missouri

O'Fallon township is located in St. Charles County, Missouri. O'Fallon township has a 2025 population of 30,679. O'Fallon township is currently declining at a rate of 0% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The average household income in O'Fallon township is $99,147 with a poverty rate of 7.42%. The median age in O'Fallon township is 42 years: 39.4 years for males, and 44.4 years for females.

Demographics

The racial composition of O'Fallon township includes 86.62% White, 3.42% Black or African American, and smaller percentages for Asian, other race, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Two or more races

Black or African American

Asian

Other race

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	26,573	86.62%
Two or more races	2,200	7.17%
Black or African American	1,050	3.42%
Asian	494	1.61%
Other race	330	1.08%
Native American	32	0.1%
Native Hawaiian or Pacific Islander	0	0%

O'Fallon township Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

O'Fallon township's average per capita income is $51,066. Household income levels show a median of $81,333. The poverty rate stands at 7.42%.

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	$116,641	-
Families	$102,553	$116,679
Households	$81,333	$99,147
Non Families	$46,647	$57,288

$51,066

Average Income

$81,333

Median Household Income

7.42%

Poverty Rate