The recorded history of Essex County, NJ began in 1666 when 30 Connecticut families established a settlement along the banks of the Passaic River in what is now Newark. Essex County was established in 1682 as one of New Jersey’s four original counties, along with Bergen, Monmouth and Middlesex. It was named after the English county of Kingdom of Essex.
As of the 2010 Census, Essex County had a population of 783,969, making it the third most populous county and the second most densely populated county in New Jersey. The county’s median household income is $55,125, and the county seat is Newark, the largest city in New Jersey.
NJ Transit headquarters are just behind Newark Penn Station in Essex County. The Northeast Corridor, New Jersey Coastline, Raritan Valley, Montclair Boonton, and Morris and Essex lines all pass through Newark Penn Station and Newark Broad Street Station. The PATH and Newark Light rail operate out of Newark Penn Station, along with an extensive network of bus lines. Newark Liberty International Airport is in southeastern Essex County.
Major roadways include the Garden State Parkway and New Jersey Turnpike; Interstates 78, 280 and 80; U.S. Routes 1/9, 22 and 46; and State Routes 7, 10, 21, 23, 24, 27, 124 and 159.