Sylvania, AL has a population of 2,408 and is the 10,038th largest city in the United States. The population density is 273 per sq mi which is 197% higher than the Alabama average and 201% higher than the national average. The median age in Sylvania is 35 which is approximately 9% lower than the Alabama average of 39. In Sylvania, 68% of the population over 15 years of age are married, 94% speak English and 6% speak Spanish. 76% of Sylvania residents were born in Alabama, 22% were born out of state, 1% were born outside of the United States and 1% were foreign born.