Girardville, PA has a population of 1,335 and is the 13,386th largest city in the United States. The population density is 2,579 per sq mi which is 831% higher than the Pennsylvania average and 2746% higher than the national average. The median age in Girardville is 43 which is approximately 6% higher than the Pennsylvania average of 41. In Girardville, 59% of the population over 15 years of age are married, 99% speak English and 0% speak Spanish. 92% of Girardville residents were born in Pennsylvania, 8% were born out of state, 0% were born outside of the United States and 0% were foreign born.