Candidates have 48 hours to request a recount after results are certified by the elections board.
Voters also elected three newcomers to the school board.
Kandis Wood Jackson, an attorney and former Teach for America Teacher, will take the seat held by departing board chairman Courtney English. Wood Jackson received nearly 70 percent of the votes in the race against Patricia Crayton for the at-large District 7 post.
In the race for the west Atlanta District 5 seat, Erika Mitchell beat Raynard Johnson.
In the east Atlanta District 3 race, Michelle Olympiadis defeated Adzua Agyapon.
Five other board seats were decided in the November election. Voters retained incumbents Leslie Grant, Eshé Collins, Cynthia Briscoe Brown, Jason Esteves, and Nancy Meister.
Board members will be sworn in at a Jan. 8 meeting, when the board also will select its new chairman.