One U.S. Senate seat from Georgia is open, and the race is too narrow to call, especially among the millennial voting group.

According to SurveyUSA for WXIA-TV, Democrat Michelle Nunn and Republican David Perdue are in a statistical dead heat with overall likely voters from Georgia. With overall voters, Perdue has a 1 percent lead over Nunn with 46 percent to 45 percent. Six percent of respondents were undecided.

When the voting figures are split among age groups, Perdue and Nunn each encounter differences. With millennials, which comprise people ages 18-34, Nunn and Perdue each received 44 percent. One percent went for Libertarian candidate Amanda Swafford, and 10 percent were undecided.

With the next age group, representing 35- to 49-year-olds, Perdue and Swafford gained support. Perdue increased his lead to 46 percent, and Nunn garnered 40 percent of the vote. Swafford's voting figures increased to 5 percent. Nine percent were undecided.

With voters between the ages of 50 and 64, the tide swayed to Nunn's favor. The Democratic candidate received 55 percent, and 39 percent favored Perdue. Swafford received 3 percent.

The oldest age group recorded were individuals over 65 years old. With this age group, Perdue significantly increased his odds to win with 57 percent to 38 percent for Nunn. Swafford's percentage decreased to 2 percent.

Gender could also play a major role in the Georgia senate race as more males favored Perdue than Nunn. With an 11 percent lead, Perdue won the male vote in the latest SurveyUSA poll with 51 percent to 40 percent for Nunn. Swafford received 3 percent, and 6 percent of men were undecided. With women, Nunn was victorious. Nunn received 49 percent of the vote, and 41 went for Perdue. Swafford attracted 4 percent of women, leaving 5 percent undecided.

SurveyUSA did not disclose the voting statistic from Latino respondents but did reveal the figures from blacks and whites. More white voters favored Perdue with 63 percent, and 27 percent went for Nunn. With black voters, Nunn received 82 percent, and Perdue garnered 15 percent of the survey.

The SurveyUSA poll was conducted between Oct. 2 and Oct. 7 with 556 likely voters participating in the Senate questionnaire.

"Nunn holds an exceptionally high 87 [percent] of the Democratic base. That is the only way she can remain competitive in a contest where, today, independents break nearly 5:3 for her Republican opponent," SurveyUSA noted. "Perdue holds 77 [percent] of conservatives. That is how he remains competitive in a contest where, today, Nunn leads among moderates by 22 points. Nunn gets to 54 [percent] in greater Atlanta, where she leads by 17. Perdue gets to 56 [percent] in Northwest GA, where he leads by 23. The candidates split the Southern and Eastern parts of the state.