What is unfair about this is that the compolete list is not given. I suspect it is mostly older cities. Most like Boston and Providence have large slum areas. These pay relatively little taxes and carry large costs. THis necessitates a very high tax rate. I wonder what Detroit's tax rate is. They were considering demolishing about 25% of the city and making it park land. This to reduce police and fire costs.
I know little of Burlington, but Vermont is a very poor state, one might say impoverished. The "average income" may be high, but that is because of retired New Yorkers. Those retirees add little to the economy.