San Jose is 50% more expensive than Downey.
When comparing San Jose, CA and Downey, CA, the overall cost of living indices are 254 and 169 respectively (national median = 100). Rent is $725/month cheaper in Downey, saving renters about $8,700/year.
Median household income is $54,165/year higher in San Jose. Home values also differ significantly — the median in San Jose is $1,187,800 compared to $728,500 in Downey.
Both cities share the same state tax structure since they are in California.
San Jose vs Downey — common questions
Other cost of living comparisons for San Jose and Downey