The median household income in Hall County is at its lowest level in five years and is below both the Georgia and national averages, according to recent numbers released by the U.S. Census Bureau. The income amount has fluctuated over the past five years, peaking at $50,108 in 2011 but sinking to $44,995 in 2013. The numbers are based on income in the past 12 months of each survey and are adjusted each time for inflation, according to the U.S. Census Bureau’s American Community Survey, which was released Thursday.