Lake Montezuma, AZ has a population of 5,227 and is the 6,260th largest city in the United States. The population density is 436 per sq mi which is 659% higher than the Arizona average and 382% higher than the national average. The median age in Lake Montezuma is 53 which is approximately 44% higher than the Arizona average of 37. In Lake Montezuma, 57% of the population over 15 years of age are married, 89% speak English and 8% speak Spanish. 27% of Lake Montezuma residents were born in Arizona, 62% were born out of state, 5% were born outside of the United States and 5% were foreign born.