Where do I file divorce if we were married and lived in different states and I am now living alone in another state?

Each state has its own residency rules-but they often require that at least one of the spouses have lived in the state for at least six months, and in the county where the case is filed for at least 30 days. There is generally no restriction on where the other spouse lives-but you must be able to serve them with the summons and divorce petition.