Modesto, CA vs San Mateo, CA

The cost of living difference between Modesto, CA and San Mateo, CA is dramatic. Modesto is 54.4% cheaper than San Mateo, a gap that translates to thousands of dollars per year in household expenses. Modesto has a cost index of 120 while San Mateo sits at 263, 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 $3,079/month in San Mateo — a 48% difference. Home values follow the same pattern: Modesto is more affordable at $415,600 median vs $1,563,200.

Median household income in Modesto is $77,899 compared to $152,669 in San Mateo (-49%). The higher salaries in San Mateo partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Modesto spend roughly 24.8% of their income on rent, more than the 24.2% in San Mateo.

Climate-wise, Modesto is notably warmer with an average of 63.1°F compared to 58.7°F in San Mateo. San Mateo receives more rainfall at 19.6" per year compared to 12.3" in Modesto.