What classification of counties has a population of over 550,000 and a density of more than 3,000 persons per square mile?

In New Jersey, counties are classified based on their population and density. The classification of counties into first, second, third, and fourth categories is important for administrative and statistical purposes. A county that has a population exceeding 550,000 and a density of more than 3,000 persons per square mile is designated as a first-class county.

First-class counties typically include those that are most urbanized, where high population density is indicative of extensive development and infrastructure. This classification is crucial for understanding the dynamics of governance, resource allocation, and service needs in these densely populated areas.

The specific thresholds of 550,000 in population and 3,000 in density are established legislative criteria that help categorize counties that experience significant urban challenges compared to those that are more rural or have lower population densities. This allows state agencies and local governments to tailor their policies and services to the unique needs of first-class counties.