The correct term is median household income.

Quick Scoop

Median household income is the income level at which half of households earn more and half earn less. Statisticians use the median instead of the average in this context because very high or very low incomes can distort the mean, while the median remains a stable indicator of the typical household’s earnings.

So the sentence should read: “Median household income is the number at which half of households earn more and half of households earn less.”

Information gathered from public forums or data available on the internet and portrayed here.