The negative sentiment increases with income as feelings are more evenly split among those with annual household income under $30,000.
"People's perceptions are closely related to how they are personally affected by the insurance law," he said. "People making less than $30,000 were most inclined that the law has had a positive impact. More of the poor are recognizing it is helping them."
The survey found that 53% of Americans who earn $50,0000 a year or more believe that Obamacare has mostly been bad for the country
, compared to just 29% of those making less than $30,000.
Slightly more than half or 51% of rural Americans give Obamacare a thumbs-down, 46% of suburbanites are in that same "mostly negative" camp and just a third or 33% of urban dwellers feel that way.
Consumers who are uninsured or unhappy with their plan should start learning about their coverage options now rather than wait for the next open enrollment period, which starts on November 15, said Carrie McLean, director of customer care at eHealth.com, director of customer care at eHealth.com, an online health insurance exchange based in Mountain View, Calif.