U.S. President DonaldTrump gestures to media before boarding Marine One departing for Andrews Air Force Base en route to West Palm Beach, Florida, at White House in Washington D.C.,the United States, Feb. 3, 2017. (Xinhua/Yin Bogu)

WASHINGTON, March 18 (Xinhua) -- Non-college educated American white males are most likely to approve of the job of U.S. President Donald Trump, according to a latest Gallup poll.

Overall, Trump boasted a 42-percent approval rating among all Americans, according to the Jan. 20-March 8 poll.

Roughly two-thirds, or 67 percent, of Americans who are white, male and without college education approve of Trump's job. Trump also tends to fare better among older than among younger subgroups.

To a large degree, Trump's job approval reflects the underlying partisan leanings of the demographic groups.

Among American adults, 88 percent of Republicans approve of Trump, compared to only 38 percent of independents, and 10 percent of Democrats.

There is a significant gender gap of 13 percentage points in Trump's job approval, with 49 percent of men and 36 percent of women approving of Trump, according to the poll.

White men, at 60 percent, and white women, at 48 percent, are far more likely than nonwhite men, at 26 percent and nonwhite women, at 14 percent, to approve of Trump, Gallup found.

Roughly half of Americans aged 50 and older approve of Trump. Trump's approval rating falls to 39 percent among those between the ages of 30 and 49, and drops further to 31 percent among those younger than 30, Gallup found.