Irvine, CA vs Simi Valley, CA
There is a significant gap in the cost of living between these two cities. Simi Valley is 23.4% cheaper than Irvine. With a cost index of 178 vs 219, the difference would have a meaningful impact on a household's monthly budget. Someone relocating from Simi Valley to Irvine should plan for substantially higher expenses across most categories.
On the housing front, median rent in Irvine is $2,893/month compared to $2,513/month in Simi Valley — a 15% difference. Home values follow the same pattern: Simi Valley is more affordable at $753,500 median vs $1,115,400.
Median household income in Irvine is $129,647 compared to $117,703 in Simi Valley (+10.1%). Irvine does offer higher incomes, but the salary premium barely offsets the higher cost of living, leaving residents with a tighter budget. Looking at affordability, residents of Irvine spend roughly 26.8% of their income on rent, more than the 25.6% in Simi Valley.
Climate-wise, both cities share similar average temperatures (64.9°F vs 66.6°F). Simi Valley receives more rainfall at 13.4" per year compared to 11.2" in Irvine.
Income & Cost
Housing
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Rent by Bedroom Size
HUD Fair Market Rent (FY 2026) — metro area average
Everyday Prices
BLS Average Prices by metro area
Climate
NOAA 30-year normals (1991-2020)