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Population & People
Population
17,088
Median age
42.7
Median household income
$125,693
Poverty rate
4.3%
Unemployment rate
4.7%
Bachelor's degree+
51.7%
Avg. commute
20 min
Hispanic or Latino
2.5%
Source: U.S. Census Bureau, American Community Survey.
Housing & Rent
Median home value
$405,900
Median gross rent
$1,588/mo
Homeownership rate
75.62%
HUD FMR — 2 bedroom
$970
HUD Fair Market Rent (Missouri statewide average across 115 areas — not specific to Lake St. Louis), 2026. Efficiency $732, 1BR $775, 2BR $970, 3BR $1265, 4BR $1457. This is a different official figure from Census median gross rent above.
Energy
Missouri commercial electricity
10.63¢/kWh
Missouri industrial electricity
8.38¢/kWh
Missouri residential electricity
13.49¢/kWh
Economy
Gross Domestic Product: All Industry Total
468469.7
Real Gross Domestic Product: All Industry Total
357965.8
All-Transactions House Price Index for Missouri
572.81
Unemployment Rate
3.6%
Source: FRED, Missouri-specific series.