Modesto, CA vs Simi Valley, CA

The cost of living difference between Modesto, CA and Simi Valley, CA is dramatic. Modesto is 32.7% cheaper than Simi Valley, a gap that translates to thousands of dollars per year in household expenses. Modesto has a cost index of 120 while Simi Valley sits at 178, making this one of the more striking comparisons on our site. Relocating between these cities would require a serious reassessment of budget and lifestyle expectations.

On the housing front, median rent in Modesto is $1,609/month compared to $2,513/month in Simi Valley — a 36% difference. Home values follow the same pattern: Modesto is more affordable at $415,600 median vs $753,500.

Median household income in Modesto is $77,899 compared to $117,703 in Simi Valley (-33.8%). While Simi Valley is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Modesto spend roughly 24.8% of their income on rent, less than the 25.6% in Simi Valley.

Climate-wise, Simi Valley is notably warmer with an average of 66.6°F compared to 63.1°F in Modesto. Simi Valley receives more rainfall at 13.4" per year compared to 12.3" in Modesto.