Mercer County, New Jersey Basics:
Mercer County New Jersey - Government Site
Population: 368,832
Area: 225 square miles
County seat: Trenton
Area code(s) in use: 609
Time zone: EST
High school graduate or higher: 87.2%
Bachelor's degree or higher: 38.2%
Median household income: $73,759
Persons in poverty: 10.8%
Home ownership rate: 66.5%
Mean travel time to work: 27.0 minutes
Adjacent counties:
Bronx (NY) Bucks (PA) Burlington Hunterdon Kings (NY) Middlesex Monmouth New York (NY) Ocean Queens (NY) Richmond (NY) Somerset