Forty-six percent of registered voters say they’ll support Clinton in the general election compared to 39 percent who say they’ll vote for Trump.
Last week's poll showed both candidates tied with 42 percent following the Republican National Convention.
Clinton's 4-point bounce following the convention is similar to those President Obama received in 2012 and 2008, but falls short of the convention bounce her husband saw in 1992.
Clinton also maintains her lead in a matchup including Libertarian nominee Gary Johnson.
The poll also shows that 90 percent of both Clinton and Trump voters say their minds are made up about their candidate.
Her favorability ratings have also improved since the Democratic convention. Positive views of Clinton rose from 31 percent a week ago to 36 percent now, while unfavorable views of the former secretary of state dropped from 56 percent to 50 percent.
Additionally, support for Clinton among Sanders fans also increased, from 67 percent in early July to 73 percent after the Democratic convention.