San Francisco is 37% more expensive than Fullerton.
When comparing San Francisco, CA and Fullerton, CA, the overall cost of living indices are 267 and 195 respectively (national median = 100). Rent is $295/month cheaper in Fullerton, saving renters about $3,540/year.
Median household income is $37,227/year higher in San Francisco. Home values also differ significantly — the median in San Francisco is $1,380,500 compared to $859,600 in Fullerton.
Both cities share the same state tax structure since they are in California.
San Francisco vs Fullerton — common questions
Other cost of living comparisons for San Francisco and Fullerton