San Francisco is 17% more expensive than Costa Mesa.
When comparing San Francisco, CA and Costa Mesa, CA, the overall cost of living indices are 267 and 228 respectively (national median = 100). Rent is comparable in both cities, with less than $50/month separating them.
Median household income is $31,373/year higher in San Francisco. Home values also differ significantly — the median in San Francisco is $1,380,500 compared to $1,054,700 in Costa Mesa.
Both cities share the same state tax structure since they are in California.
San Francisco vs Costa Mesa — common questions
Other cost of living comparisons for San Francisco and Costa Mesa