Penllyn is located in Pennsylvania. Penllyn, Pennsylvania has a population of2,996.
The median household income in Penllyn, Pennsylvania is $128,539. The median household income for the surrounding county is $88,193 compared to the national median of $61,963. The median age of people living in Penllyn is 48.8 years.
The average high temperature in July is 87 degrees, with an average low temperature in January of 22.6 degrees. The annual precipitation is 48.79.