Roy is a city in Pierce County, Washington, United States. The population was 816 at the 2020 census. Roy was officially incorporated on Janu…Roy is a city in Pierce County, Washington, United States. The population was 816 at the 2020 census. Roy was officially incorporated on January 16, 1908. It is a rural city outside Tacoma and primarily features ranch-style homes and farms. Roy was one of the early communities in the area, a prosperous boom-town and a major stop on the railroad line. But 3 major blows reduced this once-thriving town to its current form. A major fire in 1929 wiped out most of the downtown businesses just before the Depression started. The railroad eventually discontinued using Roy as a main stop. The Army annexed most of the surrounding land to the north and west, limiting expansion and the local tax base, and erasing the nearby community of Loveland.