Alexandria, AL has a population of 3,980 and is the 7,472nd largest city in the United States. The population density is 357 per sq mi which is 289% higher than the Alabama average and 295% higher than the national average. The median age in Alexandria is 40 which is approximately 4% higher than the Alabama average of 39. In Alexandria, 69% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 80% of Alexandria residents were born in Alabama, 18% were born out of state, 0% were born outside of the United States and 1% were foreign born.