Demographics of New England centers that spans from Boston to Washington, D.C. The region includes three of the four most densely populated states in the U.S.; only New Jersey has a higher population density than the states of Rhode Island, Massachusetts, and Connecticut. Greater Boston, which includes parts of southern New Hampshire, has a total population of approximately 4.4 million, while over half the population of New England falls inside Boston's Combined Statistical Area of over 7.4 million. In 2009, two New England states were among the five highest in the U.S. in divorce rates. Maine was second highest with 13.6% of people over
New England areas of production. Maine is ranked ninth for aquaculture, and has abundant potato fields in its northeast part. Vermont is fifteenth for dairy products, and Connecticut and Massachusetts seventh and eleventh for tobacco, respectively. Cranberries are grown in Massachusetts' Cape Cod-Plymouth-South Shore area, and blueberries in Maine. The region is mostly energy-efficient compared to the U.S. at large, with every state but Maine ranking within the ten most energy-efficient states; every state in New England also ranks within the ten most expensive states for electricity prices. As of January 2017, employment is stronger in New England than in the rest