Alum Rock, CA vs Westmont, CA

The cost of living difference between Alum Rock, CA and Westmont, CA is dramatic. Westmont is 38.3% cheaper than Alum Rock, a gap that translates to thousands of dollars per year in household expenses. Alum Rock has a cost index of 185 while Westmont sits at 134, 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 Alum Rock is $2,412/month compared to $1,413/month in Westmont — a 71% difference. Home values follow the same pattern: Westmont is more affordable at $617,300 median vs $880,000.

Median household income in Alum Rock is $111,976 compared to $47,899 in Westmont (+133.8%). While Alum Rock is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Alum Rock spend roughly 25.8% of their income on rent, less than the 35.4% in Westmont. The Alum Rock ratio exceeds the commonly recommended 30% threshold, which can put pressure on household budgets.