Greenock, PA has a population of 1,900 and is the 11,330th largest city in the United States. The population density is 1,783 per sq mi which is 543% higher than the Pennsylvania average and 1868% higher than the national average. The median age in Greenock is 43 which is approximately 6% higher than the Pennsylvania average of 41. In Greenock, 67% of the population over 15 years of age are married, 98% speak English and 0% speak Spanish. 86% of Greenock residents were born in Pennsylvania, 11% were born out of state, 0% were born outside of the United States and 3% were foreign born.