Cost of Living in Decatur, IL

With a cost of living index of 62, Decatur, IL is one of the most affordable cities in the country. Living here is 38% cheaper than the national average and 17% below the Illinois state average of 80. With a population of 70,368, Decatur is a mid-sized community that balances access to services with a more manageable cost of living compared to larger metros.

Housing costs are the biggest factor in Decatur's cost of living. The median monthly rent is $796 (40% below the US median of $1,319), and the median home value sits at $97,300 (68% below the national median of $304,900). At current prices, the median home costs roughly 1.9x the median household income — well within traditional affordability guidelines.

The median household income in Decatur is $50,809, which is 32% lower than the national median of $75,149. Residents spend roughly 19% of household income on rent. This is a comfortable ratio, well below the 30% threshold that financial experts recommend as a maximum. Lower incomes here are balanced by the significantly lower cost of living, stretching each dollar further.

Everyday prices in the Decatur, IL (Metropolitan Statistical Area) metro area are generally below the national average. Out of 6 common items tracked by the Bureau of Labor Statistics, 6 are priced lower than the US average. These real-world prices — from groceries to electricity — add up and should be factored into any cost of living comparison.

Data sources: US Census Bureau (ACS 2023), Zillow Home Values, HUD Fair Market Rents, BEA Regional Price Parities, BLS Average Prices, and NOAA Climate Normals. Updated monthly.