The median income of South Portland residents was an inflation-adjusted $30,285 per year. South Portland had 10,663 households in 2017, with a population of 25,431.
The city with the highest median resident income in the state was Cumberland Center. Cumberland Center's median income was $57,026 per year after adjusting for inflation – $26,741 more than South Portland. It had 892 households in 2017 and a population of 2,492.
Castine had the lowest annual resident income among cities in Maine, with a median income of only $5,147 per year. That was $25,138 less than the median income in South Portland at the time. Castine had 149 households in 2017 and a population of 857.
The table below shows the top 100 cities ranked by median annual resident earnings in 2017.