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CITY · 2000 CENSUS

Lake St. Louis

Missouri · 10,169 residents · 8.54 sq mi
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The short version

Lake St. Louis is significantly wealthier than the US average, with a median household income of $68,830. Population has fallen 26% since 2009, a loss of 3,652 residents. 38% of adults hold a bachelor's degree or higher, well above the national rate of 24%. Median home value is $164,600. With a median age of 40.3, the population is older than the US median of 35.2. Households here earn about 81% more than the Missouri median.

At a glance
Wealthier
above the US median
US median: $42,589
Older
median age 40.3
US median: 35.2
More educated
38% hold a bachelor's degree
US average: 24%
More affordable
home values down 16%, inflation adjusted
US median home: $120,530
Section 01

Population & growth

Total population
10,169
−26%vs 2009
vs 13,821 in 2009
2000 – 2025
Median age
40.3
−6%vs 2009
vs 43.0 in 2009
US average: 35.2
Population, 2000 – 2024
9K12K14K16K19K2000201020202024Lake St. Louis
202418K
2000201020202024
Age distribution, 2000
Under 55.6%(572)
US avg: 6.8%
5 to 96.5%(660)
US avg: 7.3%
10 to 147.8%(793)
US avg: 7.3%
15 to 197.2%(732)
US avg: 7.2%
20 to 244.2%(432)
US avg: 6.7%
25 to 3410.1%(1,024)
US avg: 14.2%
35 to 4417.2%(1,750)
US avg: 16%
45 to 5417.1%(1,743)
US avg: 13.4%
55 to 6412.4%(1,265)
US avg: 8.6%
65 to 748%(817)
US avg: 6.5%
75 to 843.2%(323)
US avg: 4.4%
85 and over0.6%(58)
US avg: 1.5%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

Median household income
$68,830
+4%inflation adjusted, since 2009
vs $82,224 in 2009
US average: $42,589
2000 – 2024
Per capita income
$32,064
−19%vs 2009
vs $39,525 in 2009
US average: $21,522
Poverty rate
3.9%
+0.1 ptsvs 2009
vs 3.8% in 2009
US average: 12.4%
Section 03

Housing

Median home value
$164,600
−16%inflation adjusted, since 2009
vs $244,700 in 2009
US average: $120,530
2000 – 2024
Median gross rent
$616
−13%inflation adjusted, since 2009
vs $879 in 2009
US average: $602
Owner-occupied
80.6%
−1.4 ptsvs 2009
vs 81.9% in 2009
19.4% rent
RELATED:See current rent listings in Lake St. Louis on RentDataNow
Section 04

Race & ethnicity

2009
White, non-Hispanic93%(12,858)
Black1.9%(264)
Hispanic / Latino0.9%(131)
Asian2.5%(349)
2000
White, non-Hispanic94.8%(9,641)
Black1.8%(183)
Hispanic / Latino1.3%(137)
Asian1%(99)

No data for the years selected.

Section 04 · Origins

Detailed origins & ancestry

Detailed origin tables are available for 2024; showing 2024 data.

Hispanic origin
Mexican1.2%(221)
Spaniard0.4%(70)
Guatemalan0.2%(40)
Honduran0.2%(40)
Venezuelan0.1%(24)
Peruvian0.1%(16)
Cuban0%(8)
Asian origin
Asian Indian1.2%(225)
Filipino0.2%(45)
Pakistani0.2%(37)
Korean0.1%(13)
Ancestry
German32.8%(5,925)
English18.4%(3,321)
Irish17.6%(3,179)
American5%(897)
Italian4.4%(803)
French3.9%(710)
Polish2.3%(417)
Scottish1.8%(334)
Norwegian1.5%(269)
Swedish1.2%(212)
Welsh0.8%(142)
+ 26 more ancestry groups with data
Portuguese0.6%(116)
Hungarian0.6%(114)
Czech0.6%(104)
Nigerian0.5%(98)
Dutch0.5%(90)
Arab0.4%(73)
Palestinian0.4%(73)
Ukrainian0.4%(72)
Russian0.3%(58)
Canadian0.3%(57)
Greek0.3%(57)
Scotch-Irish0.3%(57)
Austrian0.3%(46)
Swiss0.3%(46)
Bulgarian0.2%(32)
Danish0.2%(30)
West Indian0.2%(29)
Lithuanian0.1%(20)
Australian0.1%(17)
Romanian0.1%(14)
Latvian0.1%(12)
Serbian0.1%(11)
Croatian0.1%(10)
Slovak0.1%(10)
RANKED:Largest German population · Largest English population · Largest Irish population · Largest American population · Largest Italian population
Section 05

Education

Bachelor's degree or higher
37.7%
−6.3 ptsvs 2009
vs 44.0% in 2009
US average: 24.4%
High school or higher
94.4%
+0.2 ptsvs 2009
vs 94.2% in 2009
US average: 80.3%
Graduate degree
14.7%
−1.8 ptsvs 2009
vs 16.5% in 2009
US average: 8.8%
Section 06

Commute & transportation

Average commute
19.0 min
US average: 17.6
Section 07

Work & employment

No data for the years selected.

Section 08

People & community

No data for the years selected.

Marital status
Men 15+
Never married18.8%(758)
Married72.9%(2,934)
Widowed1.4%(57)
Divorced6.8%(273)
Women 15+
Never married16.5%(676)
Married68.9%(2,813)
Widowed6.1%(249)
Divorced8.5%(347)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2000
Drill deeper

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Compare Lake St. Louis to nearby cities

LAKE ST. LOUIS VS
O'Fallon
Income$110,443+60%
Home value$326,200+98%
Population96,101+402%
SEE FULL COMPARISON →
LAKE ST. LOUIS VS
Dardenne Prairie
Income$152,500+122%
Home value$432,000+162%
Population15,032−21%
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LAKE ST. LOUIS VS
Wentzville
Income$112,394+63%
Home value$331,300+101%
Population49,495+159%
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LAKE ST. LOUIS VS
St. Peters
Income$91,637+33%
Home value$269,900+64%
Population61,479+221%
SEE FULL COMPARISON →
Frequently asked

How many people live in Lake St. Louis, Missouri?

Lake St. Louis, Missouri has about 10,169 residents according to the 2000 Census.

What is the median household income in Lake St. Louis, Missouri?

The typical household in Lake St. Louis, Missouri earns about $68,830 a year. Half of households make more than that, and half make less.

Is Lake St. Louis, Missouri expensive?

In Lake St. Louis, Missouri, the median home is worth about $164,600, and the typical rent is about $616 a month.

How educated are people in Lake St. Louis, Missouri?

About 37.7% of adults age 25 and over in Lake St. Louis, Missouri hold a bachelor's degree or higher.

What is the poverty rate in Lake St. Louis, Missouri?

About 3.9% of people in Lake St. Louis, Missouri live below the federal poverty line.

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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024

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