When filing your Utah divorce forms, there are specific residency requirements in place. One or both spouses must have been a resident of the State of Utah for at least three months. Also, one of the spouses must have been a resident of the county in which the divorce will be filed for at least three months.
Or if members of the armed forces of the United States who are not legal residents of the State of Utah, then the petitioner will need to have been stationed in this state under military orders, for three months prior to the commencement of the action.
If there are children, typically, the child or children must have resided with one parent in the State of Utah for six months prior to filing or starting the divorce. If this is not true, there may be some exceptions, but obtaining legal advice would be an option before proceeding on your own.