Cost of Living in O'Fallon, IL
Population: 32,139 • 2026 Data
$102,793
Median Household Income
+33% vs national
$1,312
Median Monthly Rent
-3% vs national
$274,100
Median Home Value
-19% vs national
3.2%
Unemployment Rate
Housing in O'Fallon
The median home value in O'Fallon, IL is $274,100. Monthly rent for a typical unit averages $1,312, while total monthly housing costs (including utilities and insurance) average $1,595.
Rent-to-income ratio: 15.3%. This is within the recommended 30% threshold, suggesting housing is relatively affordable for median-income earners.
Income and Employment
The median household income in O'Fallon, IL is $102,793. The unemployment rate stands at 3.2%, with a labor force of 16,087 people.
Data Sources
All data from the US Census Bureau American Community Survey 5-Year Estimates. National median figures used for comparison context.