Williams is a city in Coconino County, Arizona, west of Flagstaff. Its population was 3,158 in 2017, according to the U.S. Census Bureau . It lies on the route of Historic Route 66, Interstate 40, and theSouthwest ChiefAmtrak train route. It is also the southern terminus of the Grand Canyon Railway, which takes visitors to Grand Canyon Village. There are numerous inns, motels...