Plum is a city located in Pennsylvania. With a 2020 population of 27,055, it is the 20th largest city in Pennsylvania and the 1420th largest city in the United States . Plum is currently declining at a rate of -0.06% annually and its population has decreased by -0.26% since the most recent census, which recorded a population of 27,126 in 2010. Plum reached it's highest population of 27,476 in 2014. Spanning over 29 miles, Plum has a population density of 947 people per square mile.
The average household income in Plum is $91,408 with a poverty rate of 3.89%. The median rental costs in recent years comes to $948 per month, and the median house value is $153,700. The median age in Plum is 45.3 years, 44.6 years for males, and 46.1 years for females.