Duncannon is located in Pennsylvania. Duncannon, Pennsylvania has a population of 1,490. Duncannon is less family-centric than the surrounding county with 23% households with children. The county percentage for households with children is 28%.
The median household income in Duncannon, Pennsylvania is $50,890. The median household income for the surrounding county is $65,878 compared to the national median of $66,222. The median age of people living in Duncannon is 40.8 years.
The average high temperature in July is 84.6 degrees, with an average low temperature in January of 19.4 degrees. The annual precipitation is 40.76.