Orchard Grass Hills, KY has a population of 1,787 and is the 11,686th largest city in the United States. The population density is 4,603 per sq mi which is 4146% higher than the Kentucky average and 4980% higher than the national average. The median age in Orchard Grass Hills is 36 which is approximately 6% lower than the Kentucky average of 39. In Orchard Grass Hills, 61% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 61% of Orchard Grass Hills residents were born in Kentucky, 34% were born out of state, 1% were born outside of the United States and 3% were foreign born.