Duncannon Real EstateDuncannon is located in Pennsylvania. Duncannon, Pennsylvania has a population of 1,471. Duncannon is more family-centric than the surrounding county with 30.99% of the households containing married families with children. The county average for households married with children is 30.33%. The median household income in Duncannon, Pennsylvania is $44,107. The median household income for the surrounding county is $60,847 compared to the national median of $57,652. The median age of people living in Duncannon is 41.3 years. Duncannon WeatherThe average high temperature in July is 84.7 degrees, with an average low temperature in January of 20.6 degrees. The average rainfall is approximately 42.8 inches per year, with 28.1 inches of snow per year. Duncannon MapReal estate near DuncannonNearby CitiesNearby Cities Homes for Sale |