The median income of Plum residents was an inflation-adjusted $36,764 per year. Plum had 11,234 households in 2017, with a population of 27,390.
The city with the highest median resident income in the state was Devon. Devon's median income was $93,604 per year after adjusting for inflation – $56,840 more than Plum. It had 564 households in 2017 and a population of 1,749.
Loretto had the lowest annual resident income among cities in Pennsylvania, with a median income of only $4,369 per year. That was $32,395 less than the median income in Plum at the time. Loretto had 115 households in 2017 and a population of 1,203.
The table below shows the top 100 cities ranked by median annual resident earnings in 2017.