Seattle is 20% more expensive than Santa Ana.
When comparing Seattle, WA and Santa Ana, CA, the overall cost of living indices are 196 and 163 respectively (national median = 100). Rent is comparable in both cities, with less than $50/month separating them.
Median household income is $33,630/year higher in Seattle. Home values also differ significantly — the median in Seattle is $912,100 compared to $657,800 in Santa Ana.
Washington has no state income tax, giving Seattle residents a significant tax advantage over California's 13.3% rate.
Seattle vs Santa Ana — common questions
Other cost of living comparisons for Seattle and Santa Ana