Diablock, KY has a population of 342 and is the 21,759th largest city in the United States. The population density is 1,725 per sq mi which is 1491% higher than the Kentucky average and 1804% higher than the national average. The median age in Diablock is 51 which is approximately 33% higher than the Kentucky average of 39. In Diablock, 81% of the population over 15 years of age are married, 100% speak English and 0% speak Spanish. 100% of Diablock residents were born in Kentucky, 0% were born out of state, 0% were born outside of the United States and 0% were foreign born.