Morris Plains, NJ vs South River, NJ

The cost of living difference between Morris Plains, NJ and South River, NJ is dramatic. South River is 43.3% cheaper than Morris Plains, a gap that translates to thousands of dollars per year in household expenses. Morris Plains has a cost index of 171 while South River sits at 119, 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 Morris Plains is $2,686/month compared to $1,599/month in South River — a 68% difference. Home values follow the same pattern: South River is more affordable at $382,500 median vs $609,700.

Median household income in Morris Plains is $149,623 compared to $101,853 in South River (+46.9%). While Morris Plains is more expensive, its higher salaries more than compensate — residents there may actually end up with more disposable income. Looking at affordability, residents of Morris Plains spend roughly 21.5% of their income on rent, more than the 18.8% in South River.