Donald Trump, a former president, is accused of improperly handling hundreds of classified documents, including ones containing military and nuclear secrets of the US.
Mr. Trump is accused of lying to investigators and hiding the documents at his Florida home, including in a ballroom and a shower.
The indictment claims that he attempted to hinder the inquiry into the management of the materials.
Tens of thousands of members and visitors attended events that Mar-a-Lago hosted, according to the charge sheet.
Trump, who will compete for president once more in 2024, rejects any accusations of impropriety.