San Diego is 81% more expensive than San Bernardino.
When comparing San Diego, CA and San Bernardino, CA, the overall cost of living indices are 197 and 109 respectively (national median = 100). Rent is $790/month cheaper in San Bernardino, saving renters about $9,480/year.
Median household income is $40,333/year higher in San Diego. Home values also differ significantly — the median in San Diego is $848,500 compared to $384,900 in San Bernardino.
Both cities share the same state tax structure since they are in California.
San Diego vs San Bernardino — common questions
Other cost of living comparisons for San Diego and San Bernardino