Lake St. Clair Flag

Lake St. Clair

County:
Franklin County
County Seat:
No
Area (mi²):
0.724
State:
Missouri

Lake St. Clair is a CDP located in Franklin County, Missouri. Lake St. Clair has a 2026 population of 825. Lake St. Clair is currently growing at a rate of 6.73% annually and its population has decreased by 0% since the most recent census, which recorded a population of 0 in 2020.

The median household income in Lake St. Clair is $81,397 with a poverty rate of 0%. The median age in Lake St. Clair is 28.5 years: 28.1 years for males, and 32 years for females. For every 100 females there are 69.0 males.

825
Total Population
1,140
Density (mi²)
52 6.73%
Growth

Lake St. Clair Population

Lake St. Clair Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026825526.73%
2025773517.06%

Median Age

Overall: 28.5 years
Female: 32 years
Male: 28.1 years

Lake St. Clair Adults

There are 561 adults, (57 of whom are seniors) in Lake St. Clair.

Sex Ratio

Female: 516 (59.2%)
Male: 356 (40.8%)

Demographics

The racial composition of Lake St. Clair includes 93% White, and smaller percentages for other race and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White81193%
Two or more races404.59%
Other race212.41%
Race
Population ↓
Percentage (of total)
Other race212.41%
Race
Population ↓
Percentage (of total)
White81193%
Two or more races404.59%

Lake St. Clair Marital Status

Economics and Income Statistics

Lake St. Clair 's average per capita income is $51,209. Household income levels show a median of $81,397. The poverty rate stands at 0%.

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$83,421-
Families$81,710$95,183
Households$81,397$81,288
Non Families-$39,316

$51,209

Average Income

$81,397

Median Household Income

0%

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)