New Castle is located in New Hampshire. New Castle, New Hampshire has a population of 817. New Castle is more family-centric than the surrounding county with 32.91% of the households containing married families with children. The county average for households married with children is 30.7%.
The median household income in New Castle, New Hampshire is $150,875. The median household income for the surrounding county is $101,683 compared to the national median of $69,021. The median age of people living in New Castle is 57.4 years.
The average high temperature in July is 81.9 degrees, with an average low temperature in January of 13.8 degrees. The average rainfall is approximately 50.1 inches per year, with 53.2 inches of snow per year.
