Landisburg, PA has a population of 245 and is the 23,529th largest city in the United States. The population density is 3,521 per sq mi which is 1170% higher than the Pennsylvania average and 3786% higher than the national average. The median age in Landisburg is 34 which is approximately 17% lower than the Pennsylvania average of 41. In Landisburg, 53% of the population over 15 years of age are married, 97% speak English and 0% speak Spanish. 75% of Landisburg residents were born in Pennsylvania, 24% were born out of state, 1% were born outside of the United States and 0% were foreign born.