While all the surrounding states of Maine, Rhode Island, Mass, Conn, and Vermont have state income and state capital gains that gets funneled back to their individual towns, NH has no state income or state capital gains.
So, the common thread that runs throughout NH and bonds all the people in all the NH towns together is this lack of a state income and state capital gains. Plus, no state sales tax is an extra bonus.
New Hampshire: Live tax free or die!
Plus, your property tax gets deducted* off your federal income tax.
* $10,000-max federal deductible effective starting tax year 2018 ...
