Cost of living in St. Charles, IL — Housing, Rent & Index

The median home value in St. Charles, IL is $468,781 as of 2026-04. That places St. Charles above the US average for housing cost, with a cost index of approximately 132 versus a national baseline of 100.

Over the past 12 months, the median home value in St. Charles has climbed 5.1%, and over the past five years it has averaged +7.3% annual growth. The current price sits +0.0% from its 5-year peak in 2026-04.

Renters pay a median of $1,909 per month in St. Charles. Rents have changed -0.4% over the last year and averaged +7.0% per year over five years.

Beyond housing, day-to-day costs in St. Charles are shaped by state and local taxes, utility rates, transportation, and groceries. This page focuses on the housing component, which is the largest single line in most household budgets and the easiest to compare across cities using consistent national data.