Island, KY has a population of 404 and is the 20,832nd largest city in the United States. The population density is 1,200 per sq mi which is 953% higher than the Kentucky average and 1225% higher than the national average. The median age in Island is 45 which is approximately 16% higher than the Kentucky average of 39. In Island, 66% of the population over 15 years of age are married, 96% speak English and 4% speak Spanish. 83% of Island residents were born in Kentucky, 14% were born out of state, 0% were born outside of the United States and 2% were foreign born.