Harrison, NJ vs Mountainside, NJ

The cost of living difference between Harrison, NJ and Mountainside, NJ is dramatic. Harrison is 32.9% cheaper than Mountainside, a gap that translates to thousands of dollars per year in household expenses. Harrison has a cost index of 139 while Mountainside sits at 208, 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 Harrison is $2,073/month compared to $3,501/month in Mountainside — a 41% difference. Home values follow the same pattern: Harrison is more affordable at $450,800 median vs $755,600.

Median household income in Harrison is $82,290 compared to $210,100 in Mountainside (-60.8%). While Mountainside is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Harrison spend roughly 30.2% of their income on rent, more than the 20% in Mountainside. The Mountainside ratio exceeds the commonly recommended 30% threshold, which can put pressure on household budgets.