They were probably talking about the places where some counties have their own tax imposed ( like SF ) so you pay a lot of money for the privilege of living there so taking a lower paying job gets hard unless you leave. I could be wrong tho.
I have county property tax in PA too. It's only about $500 per year. Maybe they mean school property tax, or their area combines them? The school tax for me is about $3700. I could see that getting astronomical if the house is big enough.
