Helena, AL has a population of 17,630 and is the 2,455th largest city in the United States. The population density is 846 per sq mi which is 820% higher than the Alabama average and 834% higher than the national average. The median age in Helena is 36 which is approximately 8% lower than the Alabama average of 39. In Helena, 65% of the population over 15 years of age are married, 94% speak English and 3% speak Spanish. 65% of Helena residents were born in Alabama, 30% were born out of state, 2% were born outside of the United States and 4% were foreign born.