At least one of the spouses must have been a resident of California for at least six (6) months prior to filing the Petition for Dissolution, and a resident of the particular County where the action is to be filed, for at least three (3) months prior to the filing. [California Family Code, §2320.]

These requirements apply only to divorces, or dissolution of marriage, as there is no residency requirement for Annulments or Legal Separations. If neither spouse presently satisfies the statutory residency requirements, but want to pursue a divorce without delay, they have the option of filing for a Legal Separation, and then amending the Petition or Response, to request a divorce once the residency requirements are met. See California Family Code, §2321(a).