Denver and Kent have a similar cost of living.
When comparing Denver, CO and Kent, WA, the overall cost of living indices are 147 and 145 respectively (national median = 100). Rent is $63/month cheaper in Denver, saving renters about $756/year.
Median household income is $1,265/year higher in Denver. Home values also differ significantly — the median in Denver is $586,700 compared to $537,500 in Kent.
Washington has no state income tax, giving Kent residents a significant tax advantage over Colorado's 4.4% rate.
Denver vs Kent — common questions
Other cost of living comparisons for Denver and Kent