The most densely populated state is New Jersey, followed by Puerto Rico (not a state) and Rhode Island. This is a list of all US states and the top five US states down to the most populous state in the United States.
California has the largest population in the United States, followed by Texas, Florida, New York, and Pennsylvania. Knowing that the three most densely populated US states are New Jersey, Rhode Island, and Massachusetts (along with unofficially Washington, DC, and Puerto Rico) only goes so far that it’s helpful to understand why. Each state has its own specific characteristics and drivers, but there are also general factors. Taking into account the size of the land area, its relief, available resources and the type of climate has a significant impact on population density.
Finally, knowing how population density is measured can help you understand what these statistics mean.