Just ahead of President Donald Trump’s making his first State of the Union address a poll by Gallup has found Americans have a a more optimistic outlook on the economy and national security than they did a year ago.

The most striking partisan swing reveals Republicans appear to be satisfied with the economy with 58 per cent approving of the job the president is going. On the other side, however, Democrats’ satisfaction with the economy dropped 14 by percent.

When it comes to military readiness and national security, Americans are more satisfied now than they were at the end of President Barack Obama’s presidency.

Changes in satisfaction, 2017 to 2018, by party. The bars represent the difference in perecentage points between 2017 and 2018 between Republican leaners (Red) and Democrat leaners (blue)

However they are less satisfied when it comes to health care, America’s image abroad, and the environment.

Gallup reported that three areas, the military, economy, and security, have the highest satisfaction ratings out of the 21 issues asked in the poll.

The poll also revealed that 78 per cent of people are satisfied with the military's preparedness and strength - up 12 per cent in a year.

The acceptance of LGBT people and women’s status in the U.S. also have high satisfaction rates, according to Gallup. But the 58 percent rating for women is still down substantially from the 72 percent who were satisfied in 2008 — the last time the question was asked.

Satisfaction with security from terrorism is up 13 percentage points, and satisfaction with the economy is also up 12 points with 58 percent of Americans say they are satisfied at the end of President Donald Trump's first year in office, up 12 points from 46 percent in the last days of President Barack Obama's administration.

Approval on the economy among Republicans increased 57 points from 2017 while dropping 14 points among Democrats. Trump is pictured during last weeks economic summit in Davos

While satisfaction in some areas has climbed, in other areas Americans are less satisfied than they were when Obama departed.

There have been declines of seven to eight points over the past year in three areas: the availability of affordable healthcare (-8), the role the U.S. plays in world affairs (-7) and the quality of the environment in the nation (-7).

Satisfaction with the position of women is down substantially from the 72% of Americans who said they were satisfied in 2008, the last time the question was asked.

The decline comes as Americans have seen increased attention on allegations of sexual harassment and mistreatment of women.

The percentage of people who are satisfied with the availability of affordable health care dropped 8 points, from 39 percent in 2017 to 31 percent this month.

Republicans are more satisfied on every issue tested compared with last year, while Democrats are less satisfied on most issues

Americans have also become less satisfied with the quality of the environment, falling 7 points from 52 percent to 45 percent. And approval of America's standing in the world has similarly dropped 7 percentage points, from 45 percent to 38 percent.

The poll was conducted from January 2-7 and has a margin of error of 4 percentage points.