Tuscumbia, AL has a population of 8,506 and is the 4,455th largest city in the United States. The population density is 922 per sq mi which is 903% higher than the Alabama average and 918% higher than the national average. The median age in Tuscumbia is 38 which is approximately 1% lower than the Alabama average of 39. In Tuscumbia, 54% of the population over 15 years of age are married, 98% speak English and 2% speak Spanish. 75% of Tuscumbia residents were born in Alabama, 22% were born out of state, 1% were born outside of the United States and 2% were foreign born.