Mercer County, NJ

McDade Administration Building,   640 S Broad St P.O. Box 8068
Trenton, NJ 08650

County Seat:     Trenton
Year Organized: 1838
Size of Board:    7
Square Miles:     224.56
2010 Population: 366,513
Persons/Square Mile: 1,632.14


Places in Mercer County

Census Bureau Quick Facts

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NACo Member County

County Populations
  2010    366,513
  2000    350,761
  1990    325,824
  1980    305,678

Elected Officials Position
Brian Hughes County Executive
Ann Cannon Freeholder
Anthony Carabelli Freeholder
John Cimino Freeholder
Pasquale Colavita Jr. Freeholder
Samuel Frisby Freeholder
Andrew Koontz Freeholder
Lucylle Walter Freeholder
John Kemler Sheriff
Paula Solami-Covello County Clerk
Jerlene Worthy Clerk to the Board
Diane Gerofsky Surrogate