Selma, AL has a population of 19,650 and is the 2,217th largest city in the United States. The population density is 1,423 per sq mi which is 1447% higher than the Alabama average and 1471% higher than the national average. The median age in Selma is 34 which is approximately 11% lower than the Alabama average of 39. In Selma, 41% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 88% of Selma residents were born in Alabama, 10% were born out of state, 0% were born outside of the United States and 2% were foreign born.