Jackson, AL has a population of 5,002 and is the 6,472nd largest city in the United States. The population density is 320 per sq mi which is 248% higher than the Alabama average and 253% higher than the national average. The median age in Jackson is 38 which is approximately 1% lower than the Alabama average of 39. In Jackson, 58% of the population over 15 years of age are married, 99% speak English and 1% speak Spanish. 88% of Jackson residents were born in Alabama, 12% were born out of state, 0% were born outside of the United States and 0% were foreign born.