Williams, AZ has a population of 3,079 and is the 8,681st largest city in the United States. The population density is 70 per sq mi which is 22% higher than the Arizona average and 22% lower than the national average. The median age in Williams is 39 which is approximately 5% higher than the Arizona average of 37. In Williams, 63% of the population over 15 years of age are married, 86% speak English and 14% speak Spanish. 44% of Williams residents were born in Arizona, 48% were born out of state, 2% were born outside of the United States and 6% were foreign born.