Sacramento is 13% cheaper than Ontario.
When comparing Sacramento, CA and Ontario, CA, the overall cost of living indices are 132 and 152 respectively (national median = 100). Rent is $222/month cheaper in Sacramento, saving renters about $2,664/year.
Median household income is $947/year higher in Sacramento. Home values also differ significantly — the median in Sacramento is $484,600 compared to $568,000 in Ontario.
Both cities share the same state tax structure since they are in California.
Sacramento vs Ontario — common questions
Other cost of living comparisons for Sacramento and Ontario