New Castle is located in New Hampshire. New Castle, New Hampshire has a population of 917. New Castle is less family-centric than the surrounding county with 17.15% of the households containing married families with children. The county average for households married with children is 32.44%.
The median household income in New Castle, New Hampshire is $113,281. The median household income for the surrounding county is $85,619 compared to the national median of $57,652. The median age of people living in New Castle is 60.1 years.
The average high temperature in July is 82 degrees, with an average low temperature in January of 14.8 degrees. The average rainfall is approximately 48.8 inches per year, with 54 inches of snow per year.
