Cost of Living
per year
per month
How St. Charles's prices compare to the US city average across major spending categories.
Index: 100 = US city average. Values >100 mean more expensive, <100 means cheaper.
How far does your salary go in St. Charles?
Your $100,000 in St. Charles has the same purchasing power as $111,832 in the average US city. You'd need $11,832 less here to maintain that standard of living.
Demographics and workforce data from the US Census ACS 5-Year.
bachelor's or higher
Climate, safety, and walkability indicators.
See a side-by-side breakdown of cost of living, housing, and salaries.
Popular comparisons
Sorted by affordability — most affordable first.
Within 10 points of St. Charles's cost index of 89, sorted by closest match.
St. Charles, Missouri has a cost-of-living index of 89, which is 11% below the national average. The typical renter pays $1,115 per month. The median household earns $83,589 per year.
To match the lifestyle of a $70,000 earner in the average US city, you'd need about $62,594 per year in St. Charles. Single renters typically want at least three times the $13,380 threshold to cover housing comfortably.
St. Charles is cheaper than most US cities. Overall prices are 11% below the national average.