Brantleyville, AL has a population of 1,110 and is the 14,512th largest city in the United States. The population density is 505 per sq mi which is 449% higher than the Alabama average and 458% higher than the national average. The median age in Brantleyville is 35 which is approximately 9% lower than the Alabama average of 39. In Brantleyville, 53% of the population over 15 years of age are married, 94% speak English and 5% speak Spanish. 80% of Brantleyville residents were born in Alabama, 19% were born out of state, 0% were born outside of the United States and 1% were foreign born.