The median income of Lea County residents was an inflation-adjusted $27,286 per year. Lea County had 22,029 households in 2017, with a population of 69,505.
The county with the highest median resident income in the state was Los Alamos County. Los Alamos County's median income was $57,089 per year after adjusting for inflation – $29,803 more than Lea County. It had 7,525 households in 2017 and a population of 18,031.
Mora County had the lowest annual resident income among counties in New Mexico, with a median income of only $12,481 per year. That was $14,805 less than the median income in Lea County at the time. Mora County had 1,513 households in 2017 and a population of 4,605.
The table below shows the state's counties ranked by median annual resident earnings in 2017.