Ontario is 11% more expensive than Allen.
When comparing Ontario, CA and Allen, TX, the overall cost of living indices are 152 and 137 respectively (national median = 100). Rent is comparable in both cities, with less than $50/month separating them.
Median household income is $46,324/year higher in Allen. Home values also differ significantly — the median in Ontario is $568,000 compared to $429,900 in Allen.
Texas has no state income tax, giving Allen residents a significant tax advantage over California's 13.3% rate.
Ontario vs Allen — common questions
Other cost of living comparisons for Ontario and Allen