Elba, AL has a population of 3,915 and is the 7,546th largest city in the United States. The population density is 255 per sq mi which is 177% higher than the Alabama average and 182% higher than the national average. The median age in Elba is 38 which is approximately 2% lower than the Alabama average of 39. In Elba, 46% of the population over 15 years of age are married, 97% speak English and 1% speak Spanish. 82% of Elba residents were born in Alabama, 17% were born out of state, 1% were born outside of the United States and 1% were foreign born.