Central Jersey, or Central New Jersey, is the middle region of the U.S. state of New Jersey. The designation Central Jersey is a distinct administrative toponym. While New Jersey is often divided into North Jersey and South Jersey, many residents recogn…Central Jersey, or Central New Jersey, is the middle region of the U.S. state of New Jersey. The designation Central Jersey is a distinct administrative toponym. While New Jersey is often divided into North Jersey and South Jersey, many residents recognize Central Jersey as a distinct third entity. As of the 2020 census, Central Jersey has a population of 3,580,999.