Sunnyvale is 50% more expensive than Costa Mesa.
When comparing Sunnyvale, CA and Costa Mesa, CA, the overall cost of living indices are 341 and 228 respectively (national median = 100). Rent is $670/month cheaper in Costa Mesa, saving renters about $8,040/year.
Median household income is $71,789/year higher in Sunnyvale. Home values also differ significantly — the median in Sunnyvale is $1,816,600 compared to $1,054,700 in Costa Mesa.
Both cities share the same state tax structure since they are in California.
Sunnyvale vs Costa Mesa — common questions
Other cost of living comparisons for Sunnyvale and Costa Mesa