A suit may be filed in a county in which:
(1) the plaintiff resides;
(2) the defendant resides;
(3) a suit affecting the parent-child relationship as provided by Chapter 102 may be brought, concerning the child who is the subject of the court order; or
(4) a court has continuing, exclusive jurisdiction as provided by Chapter 155.
Official text of the Texas Family Code as published by the Texas Legislative Council.