Fullerton is 17% more expensive than Fairfield.
When comparing Fullerton, CA and Fairfield, CA, the overall cost of living indices are 195 and 167 respectively (national median = 100). Rent is $67/month cheaper in Fullerton, saving renters about $804/year.
Median household income is $1,898/year higher in Fullerton. Home values also differ significantly — the median in Fullerton is $859,600 compared to $592,500 in Fairfield.
Both cities share the same state tax structure since they are in California.
Fullerton vs Fairfield — common questions
Other cost of living comparisons for Fullerton and Fairfield