Lampeter, PA has a population of 1,435 and is the 12,957th largest city in the United States. The population density is 836 per sq mi which is 202% higher than the Pennsylvania average and 823% higher than the national average. The median age in Lampeter is 37 which is approximately 9% lower than the Pennsylvania average of 41. In Lampeter, 61% of the population over 15 years of age are married, 97% speak English and 0% speak Spanish. 65% of Lampeter residents were born in Pennsylvania, 30% were born out of state, 0% were born outside of the United States and 5% were foreign born.