Walnuttown, PA has a population of 587 and is the 18,565th largest city in the United States. The population density is 990 per sq mi which is 257% higher than the Pennsylvania average and 993% higher than the national average. The median age in Walnuttown is 56 which is approximately 37% higher than the Pennsylvania average of 41. In Walnuttown, 52% of the population over 15 years of age are married, 97% speak English and 2% speak Spanish. 89% of Walnuttown residents were born in Pennsylvania, 9% were born out of state, 0% were born outside of the United States and 2% were foreign born.