New Castle is located in New Hampshire. New Castle, New Hampshire has a population of 1,232. New Castle is less family-centric than the surrounding county with 19% households with children. The county percentage for households with children is 27%.
The median household income in New Castle, New Hampshire is $156,402. The median household income for the surrounding county is $97,109 compared to the national median of $66,222. The median age of people living in New Castle is 61 years.
The average high temperature in July is 82.6 degrees, with an average low temperature in January of 15.3 degrees. The annual precipitation is 48.13.