Ontario is 55% cheaper than Sunnyvale.
When comparing Ontario, CA and Sunnyvale, CA, the overall cost of living indices are 152 and 341 respectively (national median = 100). Rent is $1,149/month cheaper in Ontario, saving renters about $13,788/year.
Median household income is $99,056/year higher in Sunnyvale. Home values also differ significantly — the median in Ontario is $568,000 compared to $1,816,600 in Sunnyvale.
Both cities share the same state tax structure since they are in California.
Ontario vs Sunnyvale — common questions
Other cost of living comparisons for Ontario and Sunnyvale