Within a five-year period, the sum is expected to rise to 12 million dollars, much thanks to a new main sponsor.
The USGA also presented several future host courses for the US Open, including the Riviera (2026) and last year's Solheim Cup course Inverness (2027).
It is already clear that this year's championship will be played at Pine Needles in North Carolina and that next year there will be games for the first time at Pebble Beach in California.
Last year, the British Open set a new major record on the women's side, with a total of $ 5.8 million in prize money.
Anna Nordqvist then won the victory check for 870,000 dollars (almost 8 million kronor).