The findings are a stark illustration of how many — but not all — Americans have felt less of a sense of pride in their country over the past decade.

The dramatic decline was largely driven by Democrats, while most Republicans had strong feelings of national pride, according to the poll published Monday — an indicator of the deepening partisan divide in the US.

The percentage of Americans who say they are "proud to be an American" is down nine percent from last year, a recent study shows.