George Washington, John Adams, Thomas Jefferson, James Madison, John Quincy Adams, James Monroe, Andrew Jackson, Martin Van Buren, John Tyler, James K Polk, Millard Fillmore, Franklin Pierce, James Buchanan, Andrew Johnson, Ulysses S Grant, Rutherford B Hayes, Chester A Arthur, Grover Cleveland, Benjamin Harrison, Theodore Roosevelt, William Howard Taft, Woodrow Wilson, Calvin Coolidge, Herbert Hoover, Harry S Truman, Dwight D Eisenhower, Lyndon B Johnson, Richard Nixon, Gerald Ford, Jimmy Carter, Ronald Reagan, George H W Bush, Bill Clinton, George W Bush, Barack Obama: 0 as of August 15, 2023. Carter, Clinton, GW Bush, and Obama are the only former presidents who could (theoretically) be charged with felony crimes by dint of their status.
Donald Trump: 91 as of August 15, 2023.
Note: William Henry Harrison, Zachary Taylor, Abraham Lincoln, James A Garfield, William McKinley, Warren G Harding, Franklin D Roosevelt, and John F Kennedy were excluded from this list because they didn’t have post-presidencies thanks to various illnesses and assassins’ bullets.