Sullivan is located in New Hampshire. Sullivan, New Hampshire has population of 631. Sullivan is more family-centric than the surrounding county with 25% of the households with children.
The median household income in Sullivan, New Hampshire is $79,167. The median household income for the surrounding county is $67,160 compared to the national median of $66,222. The median age of people living in Sullivan is 48.8 years.
The average high temperature in July is 79.52 degrees, with an average low temperature in January of 7.79 degrees. The annual precipitation is 44.02.
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