Cost of Living in Lake St. Louis, MO
Population 17,538 · Missouri · Data vintage 2023
(100 = US avg)
Lake St. Louis sits on the smaller end of the Missouri city distribution. That scale shapes the housing market, the labor pool, and the services available to residents in ways the data below makes visible.
Geographically, Lake St. Louis is about 30 miles west of St. Louis, the nearest large metro. Median home values run roughly 103% higher than St. Louis' $185,000.
Cost Overview
Scale: 100 = US national average. Green < 90, Red > 110.
About the Cost of Living in Lake St. Louis
The median home value in Lake St. Louis is $375,300 — 23% above the national median of $305,000. Median rent runs $1,608/month, 22% higher than the national median of $1,314/month. The median household income of $123,427/year is 65% higher than the US median of $74,580. The local unemployment rate is 4.5%, below the national average of 4.8%. Missouri's top state income tax rate is 5.0% and the combined sales tax is 8.4%. Overall, Lake St. Louis has a cost of living index of 123 versus the US average of 100, meaning it is 23% more expensive.
🏠 Housing
HUD Fair Market Rents by Bedroom
💰 Estimated Monthly Budget
Estimates based on median data and national averages. Actual costs vary.
🛒 Food & Groceries
National BLS average prices (2023). Local prices may vary.
🚗 Transportation
Commute Mode
⚡ Utilities
📋 Taxes
💼 Income & Employment
🎓 Education
👥 Demographics
Frequently Asked Questions
What is the cost of living in Lake St. Louis, MO?
Lake St. Louis has a cost index of 123 (100 = national average). It is 23% above the national average.
What is average rent in Lake St. Louis, MO?
The median gross rent in Lake St. Louis is $1,608 per month based on 2023 Census data.
What is the average home price in Lake St. Louis?
The median home value in Lake St. Louis is $375,300 according to Zillow and Census data.
What is the median income in Lake St. Louis?
The median household income in Lake St. Louis is $123,427 per year (2023 ACS 5-year estimates).
What is the sales tax in Lake St. Louis, MO?
The combined state and local sales tax rate in Lake St. Louis is 8.4%. The Missouri state income tax top rate is 5.0%.
Is Lake St. Louis, MO affordable?
Lake St. Louis is above average in cost of living, with an index of 123 — about 23% higher than the national average.
Lake St. Louis at a Glance
- Population
- 17,538
- Median Income
- $123,427
- Home Value
- $375,300
- Median Rent
- $1,608/mo
- Unemployment
- 4.5%
- Sales Tax
- 8.4%
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Missouri Rankings
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