Duncannon is located in Pennsylvania. Duncannon, Pennsylvania has a population of 1,271. Duncannon is less family-centric than the surrounding county with 26.67% of the households containing married families with children. The county average for households married with children is 28.39%.
The median household income in Duncannon, Pennsylvania is $50,625. The median household income for the surrounding county is $72,922 compared to the national median of $69,021. The median age of people living in Duncannon is 45.1 years.
The average high temperature in July is 84 degrees, with an average low temperature in January of 20.5 degrees. The average rainfall is approximately 43.9 inches per year, with 30.2 inches of snow per year.