5 Most  Crowded States in USA

3. Massachusetts

Number of People Per Square Mile: 662

Massachusetts is one of the most developed regions in the U.S. It is known for a strong presence of the biotechnology and healthcare industry, with some of America’s best hospitals located in the region. It was admitted to the Union after Connecticut, and the state covers an area of 10,554 square miles. It has a population of 6.9 million people, with a population density of 662. Median household income in the state is also quite high, with recent figures sitting at $89,026.