Penllyn is located in Pennsylvania. Penllyn, Pennsylvania has a population of 3,210.
The median household income in Penllyn, Pennsylvania is $134,241. The median household income for the surrounding county is $99,361 compared to the national median of $69,021. The median age of people living in Penllyn is 44 years.
The average high temperature in July is 85.5 degrees, with an average low temperature in January of 23 degrees. The average rainfall is approximately 47.3 inches per year, with 20.8 inches of snow per year.