San Francisco is 95% more expensive than Allen.
When comparing San Francisco, CA and Allen, TX, the overall cost of living indices are 267 and 137 respectively (national median = 100). Rent is $542/month cheaper in Allen, saving renters about $6,504/year.
Median household income is $12,316/year higher in San Francisco. Home values also differ significantly — the median in San Francisco is $1,380,500 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.
San Francisco vs Allen — common questions
Other cost of living comparisons for San Francisco and Allen