$100 bills surpassed $20 notes in 2016 for most volume of circulated currency. At the end of 2018, $100 bills made up nearly a third of all currency circulated in the US. June 14, 2019 11:27 am by IWB by funkyfunksy Source: https://www.federalreserve.gov/paymentsystems/coin_currcircvolume.htm Tool: Excel
