Both received five votes each in Dixville Notch in the state's northeast corner, which has opened its polls shortly after midnight on Tuesday each election day since 1960, but Tuesday's tie was the first in its history, CNN reported.
The result was unexpected, town clerk Dick Erwin was quoted as saying.
The hamlet, home to about a dozen residents, has drawn national media attention for being the first place in the country to make its presidential preferences known.
Dixville Notch has had 100 percent voter turnout since it started its first-in-the-nation voting tradition.
Under New Hampshire voting law, a polling place can be closed once all registered voters have officially cast their ballots. With all 10 registered voters on hand, the community had its tally shortly after midnight.
However, since 1996, another small New Hampshire town - Hart's Location - reinstated its practice from the 1940s and also began opening its polls at midnight.
Although the community typically leans Republican, residents went for Obama in 2008 - the first time the majority of folks in Dixville Notch went for a Democrat in 40 years.