Delaware is the sixth most densely populated state with 522.09 individuals per mi². Maryland is the fifth most densely populated state with a population density of 648.84 people per mi². Massachusetts has a population density of 919.82 per mi², while Connecticut has 746.7 per mi². Rhode Island is the second most densely populated state with around 1,100 people per mi². New Jersey is the most densely populated state with approximately 1,300 people per mi².

The most densely populated states in the US are New Jersey, Rhode Island, Massachusetts, Connecticut, Maryland, Delaware, New York, Florida, Pennsylvania, and Ohio. This can be attributed to a combination of factors, including greater availability of land, more spread-out communities, and a smaller number of major cities compared to the northeastern and western regions. In contrast, states in the Midwest and parts of the South tend to have lower population densities. Additionally, California, with its large urban centers such as Los Angeles and San Francisco, ranks eleventh in population density. This region includes states like Massachusetts, Connecticut, and Maryland, which have population densities above 600 people per square mile. There is a general trend of higher population densities in the northeastern states, particularly along the densely populated corridor that stretches from Washington, D.C. These states are characterized by expansive wilderness areas and lower population numbers compared to more urbanized regions.

Montana, Wyoming, and North Dakota also have relatively low population densities, highlighting their vast stretches of open land and rural landscapes. On the other hand, Alaska, the largest state in terms of land area, has the lowest population density among all states, with only 1,300 people per square mile. These two states are known for their small size and proximity to major metropolitan areas, which contribute to their high population density. Rhode Island follows closely behind as the second most densely populated state, with around 1,100 people per square mile.

New Jersey ranks as the most densely populated state, with approximately 1,300 people per square mile. Population density varies significantly across the United States, with some states experiencing high concentrations of people while others are more sparsely populated.

3d us population density map