The poll shows 50 percent of registered voters surveyed feel favorably toward Christie. That's up four percentage points from a poll conducted in March.
Those with an unfavorable opinion have declined to 39 percent and 11 percent have no opinion.
Just over half of the respondents say New Jersey is headed in the right direction while 40 percent say it's on the wrong track.
Independent voters are helping to drive Christie's favorability rating, increasing by 12 percentage points to 55 percent since March.
The telephone survey of 1,065 registered voters has a sampling error of plus or minus 2.9 percentage points.