Landisville, PA has a population of 1,769 and is the 11,745th largest city in the United States. The population density is 1,386 per sq mi which is 400% higher than the Pennsylvania average and 1430% higher than the national average. The median age in Landisville is 47 which is approximately 16% higher than the Pennsylvania average of 41. In Landisville, 70% of the population over 15 years of age are married, 95% speak English and 0% speak Spanish. 75% of Landisville residents were born in Pennsylvania, 20% were born out of state, 1% were born outside of the United States and 4% were foreign born.