Turtle Creek, PA has a population of 5,292 and is the 6,209th largest city in the United States. The population density is 5,460 per sq mi which is 1870% higher than the Pennsylvania average and 5926% higher than the national average. The median age in Turtle Creek is 41 which is approximately 1% higher than the Pennsylvania average of 41. In Turtle Creek, 45% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 91% of Turtle Creek residents were born in Pennsylvania, 8% were born out of state, 0% were born outside of the United States and 1% were foreign born.