Alton is located in New Hampshire. Alton, New Hampshire has a population of 5,775. Alton is more family-centric than the surrounding county with 28% households with children. The county percentage for households with children is 23%.
The median household income in Alton, New Hampshire is $83,880. The median household income for the surrounding county is $72,569 compared to the national median of $66,222. The median age of people living in Alton is 50.1 years.
The average high temperature in July is 81.6 degrees, with an average low temperature in January of 9.5 degrees. The annual precipitation is 42.43.