Lake Havasu City, AZ has a population of 53,058 and is the 758th largest city in the United States. The population density is 1,149 per sq mi which is 1899% higher than the Arizona average and 1168% higher than the national average. The median age in Lake Havasu City is 53 which is approximately 43% higher than the Arizona average of 37. In Lake Havasu City, 63% of the population over 15 years of age are married, 89% speak English and 9% speak Spanish. 16% of Lake Havasu City residents were born in Arizona, 76% were born out of state, 1% were born outside of the United States and 7% were foreign born.