San Diego is 17% more expensive than Downey.
When comparing San Diego, CA and Downey, CA, the overall cost of living indices are 197 and 169 respectively (national median = 100). Rent is $331/month cheaper in Downey, saving renters about $3,972/year.
Median household income is $16,921/year higher in San Diego. Home values also differ significantly — the median in San Diego is $848,500 compared to $728,500 in Downey.
Both cities share the same state tax structure since they are in California.
San Diego vs Downey — common questions
Other cost of living comparisons for San Diego and Downey