Lake St. Louis is a city located in St. Charles County Missouri. Lake St. Louis has a 2024 population of 19,285. Lake St. Louis is currently growing at a rate of 3.34% annually and its population has increased by 14.88% since the most recent census, which recorded a population of 16,787 in 2020.
The average household income in Lake St. Louis is $148,931 with a poverty rate of 4.05%. The median age in Lake St. Louis is 43.2 years: 41.7 years for males, and 44.7 years for females.
According to the most recent ACS, the racial composition of Lake St. Louis was:
Race | Population | Percentage (of total) |
|---|---|---|
| White | 15,358 | 87.57% |
| Two or more races | 975 | 5.56% |
| Black or African American | 744 | 4.24% |
| Asian | 273 | 1.56% |
| Other race | 178 | 1.01% |
| Native American | 10 | 0.06% |
| Native Hawaiian or Pacific Islander | 0 | 0% |
White
Two or more races
Black or African American
Asian
Other race
Native American
Native Hawaiian or Pacific Islander
Household Type | Count | Average Size | Owner | Renter |
|---|---|---|---|---|
| All | 7,179 | 2.44 | 75.2 | 24.8 |
| Married | 4,576 | 2.84 | 87 | 13 |
| Non Family | 1,987 | 1.31 | 53.2 | 46.8 |
| Female | 378 | 3.05 | 52.1 | 47.9 |
| Male | 238 | 3.4 | 70.2 | 29.8 |
2.83
Average Family Size
2.44
Average Household Size
75.2%
Rate of Home Ownership
Married
Male
Female
NonFamily
owner
renter
Male
Female
Education Attained | Count | Percentage |
|---|---|---|
| 9th to 12th Grade | 296 | 2.42% |
| Associates Degree | 1,108 | 9.07% |
| Bachelors Degree | 3,965 | 32.44% |
| Graduate Degree | 2,086 | 17.07% |
| High School Graduate | 2,035 | 16.65% |
| Less Than 9th Grade | 46 | 0.38% |
| Some College | 2,686 | 21.98% |
Less Than 9th Grade
9th to 12th Grade
High School Graduate
Some College
Associates Degree
Bachelors Degree
Graduate Degree
High School Graduation Rate
Bachelors Rate
Race | Total | High School | Bachelors |
|---|---|---|---|
| White | 10,896 | 10,604 | 5,399 |
| 2+ Races | 458 | 441 | 234 |
| Black | 454 | 422 | 124 |
| Hispanic | 332 | 315 | 209 |
| Asian | 197 | 196 | 160 |
| Other Race | 96 | 96 | 52 |
| Native American | 10 | 10 | 10 |
The highest rate of high school graduation is among native american people with a rate of 100%.
The highest rate of bachelors degrees is among native american people with a rate of 100%.
All
Male
Female
Name | Average | Male | Female |
|---|---|---|---|
| Bachelors Degree | $77,359 | $93,846 | $73,630 |
| Graduate Degree | $118,553 | $156,518 | $90,156 |
| High School Graduate | $46,569 | $75,260 | $24,032 |
| Less Than 9th Grade | $31,827 | $46,938 | $0 |
| Overall | $73,744 | $86,750 | $59,658 |
| Some College | $65,750 | $75,375 | $52,543 |
$73,744
Average Earnings
$86,750
Average Male
$59,658
Average Female
Only English
Spanish
Other Indo-European Languages
Asian and Pacific Island Languages
Other Languages
95.22% of Lake St. Louis residents speak only English, while 4.78% speak other languages. The non-English language spoken by the largest group is Spanish, which is spoken by 2.04% of the population.
rate
Name | Total | In Poverty | Poverty Rate |
|---|---|---|---|
| White | 15,204 | 590 | 3.88% |
| Multiple | 975 | 64 | 6.56% |
| Other | 178 | 44 | 24.72% |
| Hispanic | 489 | 17 | 3.48% |
| Black | 744 | 13 | 1.75% |
4.05%
Overall Poverty Rate
4.4%
Male Poverty Rate
3.71%
Female Poverty Rate
The race most likely to be in poverty in Lake St. Louis is Other, with 24.72% below the poverty level.
The race least likely to be in poverty in Lake St. Louis is Black, with 1.75% below the poverty level.
The poverty rate among those that worked full-time for the past 12 months was 0.48%. Among those working part-time, it was 6.33%, and for those that did not work, the poverty rate was 10.12%.
rate
Rate | Poverty |
|---|---|
| Less Than 9th Grade | 41.52% |
| High School | 7.47% |
| Some College | 3.77% |
| Bachelors or Greater | 2.02% |
rate
Rate | Poverty |
|---|---|
| Male Unemployed | 31.36% |
| Female Unemployed | 6.34% |
| Female Employed | 1.42% |
| Male Employed | 0.55% |
Households
Families
MarriedFamilies
NonFamilies
Name | Median | Mean |
|---|---|---|
| Families | $151,721 | $174,546 |
| Households | $123,427 | $148,931 |
| Married Families | $157,753 | $-999,999,999 |
| Non Families | $53,474 | $74,883 |
mean
median
Married
Widowed
Divorced
Separated
NeverMarried
61.2%
Overall Marriage Rate
63.1%
Male Marriage Rate
59.3%
Female Marriage Rate
male
female
The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.
Married
Widowed
Divorced
Separated
NeverMarried
Second Gulf War
First Gulf War
Vietnam
Korea
World War II
1,272
Number of Veterans
1,208
Male Veterans
64
Female Veterans
War | Veterans |
|---|---|
| Vietnam | 527 |
| First Gulf War | 252 |
| Second Gulf War | 160 |
| Korea | 113 |
| World War II | 7 |
count
Age Group | Veterans |
|---|---|
| 75+ | 577 |
| 35 to 54 | 282 |
| 65 to 74 | 220 |
| 55 to 64 | 155 |
| 18 to 34 | 38 |
count
Name | Veterans | % of Total |
|---|---|---|
| White | 1,157 | 9.3% |
| Black | 51 | 8.47% |
| 2+ Races | 29 | 4.38% |
| Hispanic | 28 | 6.62% |
| Other Race | 20 | 20.83% |
| Native American | 10 | 100% |
| Asian | 5 | 2.35% |
Less Than 9th Grade
High School Graduate
Some College
Bachelors or Greater
10.3%
Veteran Poverty Rate
32.23%
Veteran Disability Rate
LaborForceParticipation
67.2%
Labor Force Participation
64.2%
Employment Rate
4.5%
Unemployment Rate
LaborForceParticipation
LaborForceParticipation
Europe
Asia
Africa
Oceania
Latin America
North America
Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.
Europe
Asia
Africa
Oceania
Latin America
North America
65.61%
Born in Lake St. Louis
96.16%
Native Born
3.84%
Foreign Born
1.14%
Non Citizen
2.7%
Naturalized
96.16% of Lake St. Louis residents were born in the United States, with 65.61% having been born in Missouri. 1.14% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Latin America.
Year | Population | Growth | Change |
|---|---|---|---|
| 2029 | 22,409 | 625 | 2.87% |
| 2028 | 21,784 | 625 | 2.95% |
| 2027 | 21,159 | 624 | 3.04% |
| 2026 | 20,535 | 625 | 3.14% |
| 2025 | 19,910 | 625 | 3.24% |
| 2024 | 19,285 | 624 | 3.34% |
| 2023 | 18,661 | 330 | 1.8% |
| 2022 | 18,331 | 1,016 | 5.87% |
| 2021 | 17,315 | 528 | 3.15% |
| 2020 | 16,787 | -59 | -0.35% |
| 2019 | 16,846 | 642 | 3.96% |
| 2018 | 16,204 | 285 | 1.79% |
| 2017 | 15,919 | 198 | 1.26% |
| 2016 | 15,721 | 390 | 2.54% |
| 2015 | 15,331 | 320 | 2.13% |
| 2014 | 15,011 | 177 | 1.19% |
| 2013 | 14,834 | 82 | 0.56% |
| 2012 | 14,752 | 103 | 0.7% |
| 2011 | 14,649 | 42 | 0.29% |
| 2010 | 14,607 | 0 | 0% |
| 2000 | 10,169 | 2,769 | 37.42% |
| 1990 | 7,400 | 3,557 | 92.56% |
| 1980 | 3,843 | -18,566 | -82.85% |