Mercer County | |
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Nickname: The Capital County[1] | |
Coordinates: 40°17′N 74°42′W / 40.28°N 74.70°W | |
Country | United States |
State | New Jersey |
Founded | 1838[2] |
Named for | Hugh Mercer |
Seat | Trenton[2] |
Largest municipality | Hamilton Township (population) Hopewell Township (area) |
Area | |
• Total | 228.86 sq mi (592.7 km2) |
• Land | 224.44 sq mi (581.3 km2) |
• Water | 4.42 sq mi (11.4 km2) 1.9% |
Population | |
• Total | 387,340 |
• Density | 1,724.9/sq mi (666.0/km2) |
Congressional districts | 3rd, 12th |
Website | www |
Mercer County is a county in New Jersey, United States of America. Trenton, the capital of New Jersey, is in Mercer County. As of the year 2020, 387,340 people lived in the county.[4] Mercer County was founded in the year 1838.[2]