Fullerton, CA vs Irvine, CA
There is a significant gap in the cost of living between these two cities. Fullerton is 20.2% cheaper than Irvine. With a cost index of 175 vs 219, the difference would have a meaningful impact on a household's monthly budget. Someone relocating from Fullerton to Irvine should plan for substantially higher expenses across most categories.
On the housing front, median rent in Fullerton is $2,124/month compared to $2,893/month in Irvine — a 27% difference. Home values follow the same pattern: Fullerton is more affordable at $859,600 median vs $1,115,400.
Median household income in Fullerton is $104,219 compared to $129,647 in Irvine (-19.6%). The higher salaries in Irvine partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Fullerton spend roughly 24.5% of their income on rent, less than the 26.8% in Irvine.
Climate-wise, both cities share similar average temperatures (66.2°F vs 64.9°F). Fullerton receives more rainfall at 11.9" per year compared to 11.2" in Irvine.
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Housing
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Rent by Bedroom Size
HUD Fair Market Rent (FY 2026) — metro area average
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Climate
NOAA 30-year normals (1991-2020)