PHOENIX, Ariz. — Oregon catapults 18 spots to become the No. 14 Growth State in America, according to U-Haul® data analyzing U.S. migration trends for 2018. Growth States are calculated by the net gain of one-way U-Haul trucks entering a state versus leaving that state during a calendar year. Migration trends data is compiled from more than 2 million one-way U-Haul truck sharing transactions that occur annually.