The News & Observer and WRAL-TV sponsored a poll released Monday showing 58 percent of likely voters supported the bond while 25 percent were opposed and 17 percent were still undecided.
Funding from the bond will pay for facility repairs and capital needs for UNC-system universities and the state's community colleges.
Reyna Walters, student outreach coordinator with North Carolinians for Educational Opportunity, the leading group pushing for passage of the bond, said the poll's results show lower support then any previous data she has seen.
"Those are actually the lowest numbers (for a poll) that I've heard of so far," Walters said.
Leslie Bevacqua, director of the North Carolinians for Educational Opportunity, said the group will continue with the same strategy established at the campaign's start.
"We're following our plan to increase media coverage in the last two weeks," Bevacqua said. "You'll definitely see more ads on TV, on the radio - to drive home the message."
J.B. Milliken, UNC-system vice president of public affairs, said the push for the bond is going to be amplified in the next two weeks to target the people who are still undecided.
"People will notice an intensification of the grass roots efforts," Milliken said.
"(The bond push) is going on on all the campuses, as well as being sponsored by the county organizations."