Constitution of the State of Georgia Art. VI, § 2, ¶ I

Divorce cases shall be tried in the county where the defendant resides, if a resident of this state; if the defendant is not a resident of this state, then in the county in which the plaintiff resides; provided, however, a divorce case may be tried in the county of residence of the plaintiff if the defendant has moved from that same county within six months from the date of the filing of the divorce action and said county was the site of the marital domicile at the time of the separation of the parties, and provided, further, that any person who has been a resident of any United States army post or military reservation within the State of Georgia for one year next preceding the filing of the petition may bring an action for divorce in any county adjacent to said United States army post or military reservation.