West Alton

County:: St. Charles County
County Seat:: No
Area (mi²):: 28.812
State:: Missouri

West Alton is a city located in St. Charles County, Missouri. West Alton has a 2025 population of 346. West Alton is currently declining at a rate of -0.57% annually and its population has decreased by -2.81% since the most recent census, which recorded a population of 356 in 2020.

The average household income in West Alton is $111,813 with a poverty rate of 1.76%. The median age in West Alton is 36.7 years: 38.2 years for males, and 33.8 years for females.

Demographics

The racial composition of West Alton includes 98.04% White, and smaller percentages for Black or African American, Two or more races, Native American, Asian, Native Hawaiian or Pacific Islander, other race and multiracial populations.

Population by Race

White

Black or African American

Two or more races

Native American

Asian

Native Hawaiian or Pacific Islander

Other race

Race	Population	Percentage (of total)
White	501	98.04%
Black or African American	8	1.57%
Two or more races	2	0.39%
Native American	0	0%
Asian	0	0%
Native Hawaiian or Pacific Islander	0	0%
Other race	0	0%

West Alton Marital Status

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

West Alton's average per capita income is $45,469. Household income levels show a median of $128,438. The poverty rate stands at 1.76%.

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	$141,063	-
Families	$140,563	$131,875
Households	$128,438	$111,813
Non Families	$43,875	$49,583

$45,469

Average Income

$128,438

Median Household Income

1.76%

Poverty Rate