Jersey City is 40% more expensive than Manchester.
When comparing Jersey City, NJ and Manchester, NH, the overall cost of living indices are 148 and 106 respectively (national median = 100). Rent is $437/month cheaper in Manchester, saving renters about $5,244/year.
Median household income is $17,398/year higher in Jersey City. Home values also differ significantly — the median in Jersey City is $534,500 compared to $336,300 in Manchester.
New Hampshire has no state income tax, giving Manchester residents a significant tax advantage over New Jersey's 10.75% rate.
Jersey City vs Manchester — common questions
Other cost of living comparisons for Jersey City and Manchester