Monmouth Junction, NJ vs Rio Grande, NJ

The cost of living difference between Monmouth Junction, NJ and Rio Grande, NJ is dramatic. Rio Grande is 30.3% cheaper than Monmouth Junction, a gap that translates to thousands of dollars per year in household expenses. Monmouth Junction has a cost index of 137 while Rio Grande sits at 105, 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 Monmouth Junction is $1,880/month compared to $1,486/month in Rio Grande — a 27% difference. Home values follow the same pattern: Rio Grande is more affordable at $311,900 median vs $497,100.

Median household income in Monmouth Junction is $125,892 compared to $97,590 in Rio Grande (+29%). The higher salaries in Monmouth Junction partially offset the cost difference, but don't fully close the gap. Looking at affordability, residents of Monmouth Junction spend roughly 17.9% of their income on rent, less than the 18.3% in Rio Grande.