Seattle is 2% cheaper than Simi Valley.
When comparing Seattle, WA and Simi Valley, CA, the overall cost of living indices are 196 and 200 respectively (national median = 100). Rent is $515/month cheaper in Seattle, saving renters about $6,180/year.
Median household income is $4,281/year higher in Seattle. Home values also differ significantly — the median in Seattle is $912,100 compared to $753,500 in Simi Valley.
Washington has no state income tax, giving Seattle residents a significant tax advantage over California's 13.3% rate.
Seattle vs Simi Valley — common questions
Other cost of living comparisons for Seattle and Simi Valley