That’s a two-part question. The first part of the question is “Why?” That's a question that has plagued philosophers for thousands of years. Plato asked Aristotle, “WHY?” Aristotle asked Socrates, “WHY?” Socrates asked Homer, “WHY?” Homer asked Jethro, “WHY?” None of them could answer the question “Why?”
The second part of the question is “Does New Jersey And Maryland Have The Highest Property Taxes In The United States?"
Yes. My property tax has gone up more than 100% in the last 11 years. That's because NJ has had Democrat and "Moderate" Republican administrations for a far back as I can remember. Between them they've managed to fund every government program that you can imagine. I remember when we didn't have a state sales tax (1966). I remember when we didn't have a state income tax (1976). I remember when we didn't have a lottery (1970).
All of these revenue sources were supposed to fund state and local spending and reduce the need for property tax. Instead, it just fueled the boilers of more and more spending. I remember when teachers were underpaid. I should know, I used to be a teacher back in the 1960's. Now, teachers make more money for less days worked [about 185 days] than most other college grads [240 days]. Not only that, their pension and health care packages are far better than the private sector's packages. Top it off with tenure after 3 years and you've got yourself a better deal than almost any other profession. Their salaries go up every year whether they produce results or not.
I wouldn't pick on the teachers if they produced the best educated students in the world, but they don't. Our state turns out HS grads that can't make change for a dollar or write a simple sentence. Certainly we also have some of the brightest students in the country. Many of them come from alternative education routes: private schools and home-schooling.
We used to have one of the worst Departments of Motor Vehicles in the country. You'd wait in long lines to renew your car registration or driver's license. These were privatized a few years ago and are now running much smoother.
Our new governor, Chris Christie, made his 'bones' by prosecuting NJ politicians on the take. His office tried and convicted more that 120 of them. They all either pled guilty or were convicted. He's now trying to rein in state and local government spending. The unions, of course, are yelling FOUL. But this is what he ran on and I hope he starts to make difference for NJ's taxpayers.