Etymology
The county is named after Essex, a county in the East of England.
History
Essex was originally … 展开

Based on data from the 2010 census, Essex County is the 14th-most densely populated county in the United States, and was ranked New Jersey's … 展开

County government
The county seat of Essex County is Newark. Many offices and courts are concentrated at the Essex County Government Complex 展开

Higher education
Essex County has five public and four private institutions. Another private college closed in 1995, and … 展开

According to the U.S. Census Bureau, as of the 2020 Census, the county had a total area of 129.42 square miles (335.2 km ), of which 126.09 square … 展开

The Bureau of Economic Analysis calculated that the county's gross domestic product was $48.7 billion in 2021, which was ranked fourth in the state and was a 6.5% increase … 展开

In presidential elections, the county has long been Democratic and is the most Democratic county in the state. It was the only county in the state to be won by Walter Mondale in 1984. As of October 1, 2021, there were a total of 571,960 registered voters in … 展开