Stapleton, AL has a population of 1,538 and is the 12,531st largest city in the United States. The population density is 143 per sq mi which is 47% higher than the Alabama average and 58% higher than the national average. The median age in Stapleton is 45 which is approximately 16% higher than the Alabama average of 39. In Stapleton, 75% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 79% of Stapleton residents were born in Alabama, 20% were born out of state, 0% were born outside of the United States and 1% were foreign born.