The reason, it seems, is that a lot of people come there to work, but live elsewhere: ‘Founded in 1905 as the first exclusively industrial city in the Southwest

The reason, it seems, is that a lot of people come there to work, but live elsewhere: ‘Founded in 1905 as the first exclusively industrial city in the Southwestern United States, Vernon currently houses more than 1,800 businesses that employ approximately 50,000 people, serving as a vital economic engine in the region.’ (http://www.cityofvernon.org/about-vernon http://www.cityofvernon.org/about-vernon)