Lake St. Louis, Missouri Population 2022

18,811
map placeholder

Lake St. Louis is a city located in St. Charles County Missouri. Lake St. Louis has a 2020 population of 18,811. Lake St. Louis is currently growing at a rate of 3.57% annually and its population has increased by 28.77% since the most recent census, which recorded a population of 14,608 in 2010.

The average household income in Lake St. Louis is $114,193 with a poverty rate of 3.71%. The median rental costs in recent years comes to $1,130 per month, and the median house value is $274,400. The median age in Lake St. Louis is 45.4 years, 43.2 years for males, and 47 years for females.

Lake St. Louis Demographics

According to the most recent ACS, the racial composition of Lake St. Louiswas:

  • White: 92.98%
  • Two or more races: 2.11%
  • Black or African American: 2.07%
  • Asian: 1.79%
  • Other race: 0.53%
  • Native American: 0.40%
  • Native Hawaiian or Pacific Islander: 0.13%
The current population of Lake St. Louis, Missouri is 18,811 based on our projections of the latest US Census estimates. The US Census estimates the 2018 population at 18,811.The last official US Census in 2010 recorded the population at 14,608.

Lake St. Louis, Missouri Population 2022

Population by Race

Race Population Percentage
White14,86692.98%
Two or More Races3372.11%
Black or African American3312.07%
Asian2861.79%
Some Other Race840.53%
American Indian and Alaska Native640.40%
Native Hawaiian and Other Pacific Islander210.13%
Loading...

Lake St. Louis Population by Race

Lake St. Louis Population Pyramid $2022

Loading...

Lake St. Louis Median Age

45.4


Total

43.2


Male

47


Female

Lake St. Louis Adults

There are 12,763 adults, (3,430 of whom are seniors) in Lake St. Louis.

Lake St. Louis Age Dependency

Age Dependency Ratio

36.8

Old Age Dependency Ratio

34.6

Child Dependency Ratio

Lake St. Louis Sex Ratio

Female

7,907

49.45%

Male

8,082

50.55%

Lake St. Louis Population by Age

Lake St. Louis Renter vs Owner Occupied by Household Type

map placeholder

Lake St. Louis Household Types

Type Owner Renter
Non Family67.3%32.7%
Male76.8%23.2%
All80.3%19.7%
Female81.9%18.1%
Married85.9%14.1%

80.3%

Rate of Home Ownership

Lake St. Louis Households and Families

Type Count Average Size Owned
All6,2582.5580.3
Married3,9692.9885.9
Non Family1,7021.1967.3
Female3763.381.9
Male2114.2676.8

3

Average Family Size

2.55

Average Household Size

Loading...

Lake St. Louis Households by Type

Loading...
Education Attained Count Percentage
Less Than 9th Grade800.69%
9th to 12th Grade3442.96%
High School Graduate2,30219.83%
Some College2,42720.90%
Associates Degree1,22510.55%
Bachelors Degree3,35928.93%
Graduate Degree1,87416.14%
Loading...

Lake St. Louis Educational Attainment by Sex (over 25)

Lake St. Louis Educational Attainment by Race

Loading...
Race Total High School Bachelors
White10,64710,3724,893
Hispanic521379141
Black24423744
Asian157157123
2+ Races535332
Other Race454545
Native American412715
Islander2111

The highest rate of high school graduation is among asian people with a rate of 100.00%.

The highest rate of bachelors degrees is among other race people with a rate of 100.00%.

Lake St. Louis Educational Attainment by Race

Loading...
Name Average Male Female
Overall$52,778$66,955$41,610
Less Than 9th Grade$$$
High School Graduate$43,284$54,139$30,201
Some College$39,551$48,014$29,276
Bachelors Degree$67,841$94,583$49,677
Graduate Degree$75,665$119,167$63,867

$52,778

Average Earnings

$66,955

Average Male

$41,610

Average Female

Lake St. Louis Earnings by Educational Attainment

Lake St. Louis Language by Age

Loading...

Lake St. Louis Language

94.26% of Lake St. Louis residents speak only English, while 5.74% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 3.90% of the population.

Lake St. Louis Language

Lake St. Louis Poverty by Race

Loading...
Name Total In Poverty Poverty Rate
White14,2644112.88%
Hispanic84316619.69%
Multiple337205.93%
Black331154.53%
OtherNaN%

3.71%

Overall Poverty Rate

2.55%

Male Poverty Rate

4.88%

Female Poverty Rate

Poverty in Lake St. Louis

The race most likely to be in poverty in Lake St. Louis is Hispanic, with 19.69% below the poverty level.

The race least likely to be in poverty in Lake St. Louis is Other, with NaN% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 1.03%. Among those working part-time, it was 4.80%, and for those that did not work, the poverty rate was 6.82%.

Lake St. Louis Poverty

Loading...
Name Poverty
Less Than 9th Grade37.50%
Bachelors or Greater2.75%
High School2.61%
Some College1.67%

Lake St. Louis Poverty Rate by Education

Loading...
Rate Poverty
Female Employed1.91%
Male Employed1.76%
Female Unemployed0.00%
Male Unemployed0.00%

Lake St. Louis Poverty Rate by Employment Status and Sex

Lake St. Louis Income by Household Type

Loading...
Name Median Mean
Households$92,298$114,193
Families$113,142$130,150
Married Families$118,456-
Non Families$50,592$65,971
Loading...

Income by Household Type

Lake St. Louis Marital Status

map placeholder

Marriage Rates

59.8%

Overall Marriage Rate

60.3%

Male Marriage Rate

59.2%

Female Marriage Rate

Lake St. Louis Married by Age and Sex

Loading...

Lake St. Louis Marriage

The age group where males are most likely to be married is 45-54, while the female age group most likely to be married is 55-64.

Lake St. Louis Marital Status by Race

map placeholder

Lake St. Louis Marital Status

Loading...

1,404

Number of Veterans

Male Veterans

Female Veterans

War Veterans
Vietnam474
First Gulf War272
Second Gulf War197
Korea140
World War II113

Lake St. Louis Veterans by War

Loading...
Age Group Veterans
65 to 74452
75+419
35 to 54246
55 to 64181
18 to 34106

Lake St. Louis Veterans by Age

Loading...
Name Veterans % of Total
White1,32011.02%
Black7328.19%
Hispanic538.05%
Asian116.51%

Lake St. Louis Veterans by Race

Lake St. Louis Veterans by Education

Loading...

0.71%

Veteran Poverty Rate

26.07%

Veteran Disability Rate

Lake St. Louis Veterans by Education

Loading...

63.5%

Labor Force Participation

61.6%

Employment Rate

3%

Unemployment Rate

Lake St. Louis Employment by Age

Loading...

Lake St. Louis Employment by Race

Loading...

Lake St. Louis Employment by Education

Origin of Non-Citizens

Loading...

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Loading...

59.25%

Born in Lake St. Louis

95.40%

Native Born

4.60%

Foreign Born

2.34%

Non Citizen

2.26%

Naturalized

Place of Birth

95.40% of Lake St. Louis residents were born in the United States, with 59.25% having been born in Missouri. 2.34% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.

Lake St. Louis Place of Birth

Note: 2021 and 2022 data is projected
Year Population Growth Annual Growth Rate
202218,8116493.57%
202118,1626493.71%
202017,5136493.85%
201916,8646494.00%
201816,2152941.85%
201715,9212051.30%
201615,7163892.54%
201515,3273192.13%
201415,0081771.19%
201314,831830.56%
201214,7481010.69%
201114,647390.27%
201014,6084,4393.69%
200010,1692,7693.23%
19907,4003,5576.77%
19803,8430.00%

Lake St. Louis Population by Year