The median income of Caldwell County residents was an inflation-adjusted $26,901 per year. Caldwell County had 3,741 households in 2017, with a population of 9,046.
The county with the highest median resident income in the state was Platte County. Platte County's median income was $38,008 per year after adjusting for inflation – $11,107 more than Caldwell County. It had 38,147 households in 2017 and a population of 96,899.
Mississippi County had the lowest annual resident income among counties in Missouri, with a median income of only $15,072 per year. That was $11,829 less than the median income in Caldwell County at the time. Mississippi County had 5,128 households in 2017 and a population of 13,916.
The table below shows the top 100 counties ranked by median annual resident earnings in 2017.