Santa Ana and Richmond have a similar cost of living.
When comparing Santa Ana, CA and Richmond, CA, the overall cost of living indices are 163 and 161 respectively (national median = 100). Rent is $80/month cheaper in Richmond, saving renters about $960/year.
Median household income is $1,684/year higher in Richmond. Home values also differ significantly — the median in Santa Ana is $657,800 compared to $650,100 in Richmond.
Both cities share the same state tax structure since they are in California.
Santa Ana vs Richmond — common questions
Other cost of living comparisons for Santa Ana and Richmond