Cottleville

County:: St. Charles County
County Seat:: No
Area (mi²):: 4.733
State:: Missouri

Cottleville is a city located in St. Charles County, Missouri. Cottleville has a 2025 population of 6,274. Cottleville is currently growing at a rate of 1.88% annually and its population has increased by 10.15% since the most recent census, which recorded a population of 5,696 in 2020.

The average household income in Cottleville is $175,801 with a poverty rate of 3.3%. The median age in Cottleville is 36.9 years: 35.2 years for males, and 37.8 years for females.

Demographics

The racial composition of Cottleville includes 84.47% White, 7.76% Black or African American, and smaller percentages for other race, Asian, Native American, Native Hawaiian or Pacific Islander and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Other race

Asian

Native American

Native Hawaiian or Pacific Islander

Race	Population	Percentage (of total)
White	4,857	84.47%
Black or African American	446	7.76%
Two or more races	335	5.83%
Other race	81	1.41%
Asian	31	0.54%
Native American	0	0%
Native Hawaiian or Pacific Islander	0	0%

Cottleville Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Cottleville's average per capita income is $66,078. Household income levels show a median of $114,420. The poverty rate stands at 3.3%.

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	$172,386	-
Families	$158,378	$200,602
Households	$114,420	$175,801
Non Families	$73,264	$107,428

$66,078

Average Income

$114,420

Median Household Income

3.3%

Poverty Rate