Castro Valley, CA vs Elk Grove, CA

The cost of living difference between Castro Valley, CA and Elk Grove, CA is dramatic. Elk Grove is 32.5% cheaper than Castro Valley, a gap that translates to thousands of dollars per year in household expenses. Castro Valley has a cost index of 204 while Elk Grove sits at 154, 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 Castro Valley is $2,499/month compared to $2,180/month in Elk Grove — a 15% difference. Home values follow the same pattern: Elk Grove is more affordable at $603,400 median vs $1,058,200.

Median household income in Castro Valley is $138,069 compared to $122,229 in Elk Grove (+13%). Castro Valley 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 Castro Valley spend roughly 21.7% of their income on rent, more than the 21.4% in Elk Grove.