The average annual household income in Jefferson County is $90,179, while the median household income sits at $57,382 per year. Residents aged 25 to 44 earn $61,778, while those between 45 and 64 years old have a median wage of $67,394. In contrast, people younger than 25 and those older than 65 earn less, at $38,042 and $43,696, respectively.