Ontario, CA vs Santa Monica, CA

The cost of living difference between Ontario, CA and Santa Monica, CA is dramatic. Ontario is 45.2% cheaper than Santa Monica, a gap that translates to thousands of dollars per year in household expenses. Ontario has a cost index of 142 while Santa Monica sits at 259, 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 Ontario is $1,916/month compared to $2,338/month in Santa Monica — a 18% difference. Home values follow the same pattern: Ontario is more affordable at $568,000 median vs $1,810,200.

Median household income in Ontario is $82,806 compared to $109,739 in Santa Monica (-24.5%). The higher salaries in Santa Monica partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Ontario spend roughly 27.8% of their income on rent, more than the 25.6% in Santa Monica.

Climate-wise, Ontario is notably warmer with an average of 66.8°F compared to 62.8°F in Santa Monica. Santa Monica receives more rainfall at 13.5" per year compared to 11.6" in Ontario.