Here are the 30 N.J. towns with the highest property tax rates Updated Mar 15, 2021; New Jersey’s highest-in-the-nation average property tax bill hit $9,112 last year. And while the average property tax bill in the state and in each municipality tells us how much New Jersey’s homeowners are really paying, it’s not the best way to measure which towns take the biggest bite. Those with with million-dollar houses will inevitably have higher average property tax bills, which are a function of property values and property tax rates. The best way to compare tax bills is using the equalized tax rate.