Alton Real EstateAlton is located in New Hampshire. Alton, New Hampshire has a population of 5,826. Alton is more family-centric than the surrounding county with 27.73% of the households containing married families with children. The county average for households married with children is 25.17%. The median household income in Alton, New Hampshire is $101,604. The median household income for the surrounding county is $75,035 compared to the national median of $69,021. The median age of people living in Alton is 50.7 years. Alton WeatherThe average high temperature in July is 80.6 degrees, with an average low temperature in January of 10 degrees. The average rainfall is approximately 46.8 inches per year, with 62.4 inches of snow per year. Alton MapReal estate near AltonNearby CitiesNearby Cities Homes for Sale |