The median income of South Prairie residents was an inflation-adjusted $30,250 per year. South Prairie had 98 households in 2017, with a population of 271.
The city with the highest median resident income in the state was Yarrow Point. Yarrow Point's median income was $103,333 per year after adjusting for inflation – $73,083 more than South Prairie. It had 430 households in 2017 and a population of 1,184.
Disautel had the lowest annual resident income among cities in Washington, with a median income of only $2,499 per year. That was $27,751 less than the median income in South Prairie at the time. Disautel had 16 households in 2017 and a population of 22.
The table below shows the top 100 cities ranked by median annual resident earnings in 2017.