How Many People Live In Nj 2024 By County. Usafacts uses census data to break down the population of essex county by race, age,and more. Its area is 8,722 sq miles (22,591 sq km) and has highest density rank, 1210 people per sq mile.
Usafacts uses census data to break down the population of camden county by race,. New jersey has only two counties below 100,000 residents.