Seattle is 32% more expensive than Gilbert.
When comparing Seattle, WA and Gilbert, AZ, the overall cost of living indices are 196 and 148 respectively (national median = 100). Rent is comparable in both cities, with less than $50/month separating them.
Median household income is $633/year higher in Seattle. Home values also differ significantly — the median in Seattle is $912,100 compared to $518,600 in Gilbert.
Washington has no state income tax, giving Seattle residents a significant tax advantage over Arizona's 2.5% rate.
Seattle vs Gilbert — common questions
Other cost of living comparisons for Seattle and Gilbert