The median home in Lake Saint Louis, Missouri is valued at $417,936, up 0.1% year over year. Typical monthly rent is $1,611, producing a price-to-rent ratio of 21.6x — well above the national average of 18x. Lake Saint Louis is part of the St. Louis, MO-IL metropolitan area, which CrashWatch tracks daily with real-time stress scores and crash risk analysis.

Home Value$417,936

+0.1%

Rent$1,611/mo

Prices rising — worse for buyers.

Affordability

Enter your income for Lake Saint Louis.

Income (annual)

Down Payment

$83,587 on $417,936

Example: $75,000 household income. Change it above to see your own.

Out of reach41.9% of income

Need $112,200/yr to afford.

PITI$2,618

P/I41.9%

Afford$279K

Gap-$139K

P&I $2,113Tax $338Ins $167

Renting $1,007/mo cheaper ($1,611 rent)6.50% 30yr, 20% down, county tax + MO ins. 28% per HUD.

Home Buying Kit For Dummies (2025)Financing, negotiation, closing

Other cities in Missouri

Compare Lake Saint Louis with other housing markets across Missouri.

Huntleigh$2.29M Village of Loch Lloyd$1.29M Ladue$1.27M Westwood$1.24M Frontenac$1.2M Town and Country$1.09M Clarkson Valley$876K Clayton$830K

Full St. Louis, MO-IL analysis

Stress scores, crash risk, early warning signals, and 12-month price forecasts for the St. Louis, MO-IL metro.

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Lake Saint Louis, MO