Cost of Living in Lake St. Louis, MO
Cost indexes, living wages, and fair market rents — 2024 Data
Cost of Living Overview
Overall Index
171.6
100 = national avg
+71.6 vs national average
Living Wage (1 Adult)
$75,484
per year
Living Wage (Family of 4)
$178,417
per year
Cost Index by Category
Housing186.7
Food144.3
Transportation188.7
Healthcare135.5
Utilities144.0
100 = national average. Higher = more expensive.
Fair Market Rent
Source: HUD1 Bedroom
$995
per month
2 Bedroom
$1,218
per month
The overall cost of living index in Lake St. Louis is 171.6, which is 71.6% above the national average. Housing costs are above the national average at an index of 186.7. A single adult needs to earn approximately $75,484 per year to cover basic expenses.