Petaluma, CA vs Santa Rosa, CA

Santa Rosa is moderately more affordable than Petaluma, with a 13.4% lower cost of living index. Petaluma scores 179 compared to 158 for Santa Rosa, where the US average is 100. This difference means residents of Petaluma can expect to pay noticeably more for everyday expenses, housing, and services.

On the housing front, median rent in Petaluma is $2,379/month compared to $2,084/month in Santa Rosa — a 14% difference. Home values follow the same pattern: Santa Rosa is more affordable at $685,000 median vs $834,900.

Median household income in Petaluma is $109,823 compared to $97,410 in Santa Rosa (+12.7%). The higher salaries in Petaluma partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Petaluma spend roughly 26% of their income on rent, more than the 25.7% in Santa Rosa.

Climate-wise, both cities share similar average temperatures (57.7°F vs 58.1°F). Santa Rosa receives more rainfall at 33.8" per year compared to 20.2" in Petaluma.