5 Most Densely Populated States in the US

In this article, we will take a look at the top 5 most densely populated states in the US. If you would like to read our discussion on the population trends in the US, you can go to the 19 Most Densely Populated States in the US.

5. Maryland

Population per Square Mile: 636.1

GDP per Capita: $76,271

Maryland has a diverse population density, with a statewide average of approximately 636.1 people per square mile. However, there are notable variations within the state, with urban centers like Baltimore experiencing high densities while rural areas have lower population concentrations. Maryland boasts strong sectors in technology, healthcare, and education, contributing to a flourishing service industry.

4. Connecticut

Population per Square Mile: 744.1

GDP per Capita: $88,755

Connecticut is a densely populated state on the East Coast. With roughly 744 people per square mile, it ranks fifth on our list of the most densely populated states in the US. This density concentrates heavily in urban areas like Bridgeport and Hartford, while rural regions are significantly less densely populated. Connecticut’s economy leans towards finance and insurance, fueled by major corporations headquartered within its borders. Additionally, bioscience and advanced manufacturing are growing sectors with a strong emphasis on innovation.

3. Massachusetts

Population per Square Mile: 901.2

GDP per Capita: $96,596

Massachusetts is another densely populated state on the East Coast. The state’s urban areas, particularly Boston and Cambridge, bear the brunt of this concentration, while the western regions have a lower population density. Massachusetts’ economy thrives on a knowledge-based foundation. Education, healthcare (research hospitals), and technology sectors are among the major drivers. Additionally, finance and professional services play significant roles, solidifying Massachusetts’ economic position as a leader in innovation and economic power in the Northeast.

2. Rhode Island

Population per Square Mile: 1061.4

GDP per Capita: $65,263

Rhode Island is among the three most densely populated states in the US.  With a whopping 1,061 people per square mile, the state has a high population concentration despite its small size. Rhode Island’s economy has traditionally been driven by manufacturing, specifically in industries like jewelry and silverware.

1. New Jersey

Population per Square Mile: 1263.0

GDP per Capita: $80,484

New Jersey is among the most densely populated states in the US, with 1263 people per square mile or 343 people per square kilometer. This high population density is attributed to its position within the Northeast megalopolis, with urban hubs like Newark and Jersey City attracting residents. New Jersey’s economy thrives on a diverse base, with finance, pharmaceuticals, and transportation (major ports and airports) being powerhouses.