Sales of gold coins by the US Mint totaled 24.9 mt in 2015, 53% higher than 2014, data released by the government agency showed Tuesday.
The total is just below the record amount sold in 2013 of 26.6 mt.
Sales of silver coins rose to a record high of 1,461 mt in 2015, up 7% on the year.
In December, the US Mint sold only 0.02 mt of gold coins, with the agency having sold out at many locations following high demand in previous months as customers looked to take advantage of record low gold and silver prices.
Gold traded at 6.5-year lows of around $1,050/oz November, following a slump in the summer as investors piled pressure on the metal ahead of the first interest rate hike by the Federal Reserve in nearly a decade.
Gold lost nearly 8% in 2015 while silver tracked the precious metal lower throughout the year, down over 9% since January.
The London Bullion Market Association Gold Price settled at $1,078/oz Tuesday morning, down $2.25/oz on the previous session.
The LBMA Silver Price settled at $14/oz Monday, up $0.18/oz on the previous session.