Mercer County sits in central New Jersey, halfway between New York and Philadelphia. Trenton, the state capital, is the county seat.
Trenton was the site of Washington's decisive Christmas 1776 victory, and the gold-domed State House sits on the Delaware. Princeton, with its Ivy League university, anchors the wealthier northern end of the county.
Some homes across Mercer County still heat with oil. Comparing local quotes is the easy way to keep your costs down.