The median income of Plymouth residents was an inflation-adjusted $32,885 per year. Plymouth had 3,959 households in 2017, with a population of 8,477.
The city with the highest median resident income in the state was Lac La Belle. Lac La Belle's median income was $73,295 per year after adjusting for inflation – $40,410 more than Plymouth. It had 103 households in 2017 and a population of 268.
Whitewater had the lowest annual resident income among cities in Wisconsin, with a median income of only $9,012 per year. That was $23,873 less than the median income in Plymouth at the time. Whitewater had 4,609 households in 2017 and a population of 14,762.
The table below shows the top 100 cities ranked by median annual resident earnings in 2017.