The median income of Rock Rapids residents was an inflation-adjusted $32,199 per year. Rock Rapids had 1,044 households in 2017, with a population of 2,559.
The city with the highest median resident income in the state was Bentley. Bentley's median income was $73,309 per year after adjusting for inflation – $41,110 more than Rock Rapids. It had 43 households in 2017 and a population of 104.
Rodney had the lowest annual resident income among cities in Iowa, with a median income of only $9,659 per year. That was $22,540 less than the median income in Rock Rapids at the time. Rodney had 29 households in 2017 and a population of 50.
The table below shows the top 100 cities ranked by median annual resident earnings in 2017.