Peridot, AZ has a population of 1,633 and is the 12,214th largest city in the United States. The population density is 317 per sq mi which is 387% higher than the Arizona average and 249% higher than the national average. The median age in Peridot is 24 which is approximately 36% lower than the Arizona average of 37. In Peridot, 35% of the population over 15 years of age are married, 65% speak English and 1% speak Spanish. 99% of Peridot residents were born in Arizona, 1% were born out of state, 0% were born outside of the United States and 0% were foreign born.