Denver is 141% more expensive than Springfield.
When comparing Denver, CO and Springfield, IL, the overall cost of living indices are 147 and 61 respectively (national median = 100). Rent is $825/month cheaper in Springfield, saving renters about $9,900/year.
Median household income is $26,144/year higher in Denver. Home values also differ significantly — the median in Denver is $586,700 compared to $155,200 in Springfield.
Colorado has a lower income tax rate, making Denver slightly more tax-friendly.
Denver vs Springfield — common questions
Other cost of living comparisons for Denver and Springfield