West Alton Flag

West Alton

County Seat:
No
Area (mi²):
28.812
State:
Missouri

West Alton is a city located in St. Charles County, Missouri. West Alton has a 2026 population of 351. West Alton is currently declining at a rate of -0.28% annually and its population has decreased by -1.4% since the most recent census, which recorded a population of 356 in 2020.

The median household income in West Alton is $111,500 with a poverty rate of 1.71%. The median age in West Alton is 36.5 years: 38.2 years for males, and 31.5 years for females. For every 100 females there are 93.0 males.

351
Total Population
12
Density (mi²)
-1 -0.28%
Growth

West Alton Population

West Alton Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026351-1-0.28%
2025352-1-0.28%
202435310.28%
202335200%
2022352-3-0.85%
2021355-1-0.28%
202035600%
2019527-3-0.57%
201853000%
2017530-1-0.19%
201653120.38%
201552900%
201452920.38%
201352740.76%
201252310.19%
201152200%
201052310.19%

Median Age

Overall: 36.5 years
Female: 31.5 years
Male: 38.2 years

West Alton Adults

There are 325 adults, (57 of whom are seniors) in West Alton.

Sex Ratio

Female: 242 (51.8%)
Male: 225 (48.2%)

Demographics

The racial composition of West Alton includes 96.15% White, and smaller percentages for Black or African American, Two or more races and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White44996.15%
Black or African American132.78%
Two or more races51.07%
Race
Population ↓
Percentage (of total)
White44996.15%
Black or African American132.78%
Two or more races51.07%

West Alton Marital Status

Economics and Income Statistics

West Alton 's average per capita income is $48,750. Household income levels show a median of $111,500. The poverty rate stands at 1.71%.

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$141,111-
Families$134,722$125,024
Households$111,500$105,714
Non Families$45,833$50,680

$48,750

Average Income

$111,500

Median Household Income

1.71%

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)