Oley, PA has a population of 1,194 and is the 14,054th largest city in the United States. The population density is 973 per sq mi which is 251% higher than the Pennsylvania average and 974% higher than the national average. The median age in Oley is 43 which is approximately 5% higher than the Pennsylvania average of 41. In Oley, 72% of the population over 15 years of age are married, 93% speak English and 4% speak Spanish. 92% of Oley residents were born in Pennsylvania, 8% were born out of state, 0% were born outside of the United States and 0% were foreign born.