Denver is 7% more expensive than Thornton.
When comparing Denver, CO and Thornton, CO, the overall cost of living indices are 147 and 138 respectively (national median = 100). Rent is comparable in both cities, with less than $50/month separating them.
Median household income is $9,304/year higher in Thornton. Home values also differ significantly — the median in Denver is $586,700 compared to $482,200 in Thornton.
Both cities share the same state tax structure since they are in Colorado.
Denver vs Thornton — common questions
Other cost of living comparisons for Denver and Thornton