Santa Clara is 82% more expensive than Downey.
When comparing Santa Clara, CA and Downey, CA, the overall cost of living indices are 307 and 169 respectively (national median = 100). Rent is $1,093/month cheaper in Downey, saving renters about $13,116/year.
Median household income is $86,270/year higher in Santa Clara. Home values also differ significantly — the median in Santa Clara is $1,527,900 compared to $728,500 in Downey.
Both cities share the same state tax structure since they are in California.
Santa Clara vs Downey — common questions
Other cost of living comparisons for Santa Clara and Downey