Elizabethtown, KY has a population of 29,835 and is the 1,435th largest city in the United States. The population density is 1,096 per sq mi which is 911% higher than the Kentucky average and 1109% higher than the national average. The median age in Elizabethtown is 36 which is approximately 6% lower than the Kentucky average of 39. In Elizabethtown, 52% of the population over 15 years of age are married, 92% speak English and 3% speak Spanish. 56% of Elizabethtown residents were born in Kentucky, 35% were born out of state, 3% were born outside of the United States and 5% were foreign born.