https://worldpopulationreview.com/us-cities/pennsylvania/derry-township-westmoreland-county
Derry township, Pennsylvania Population 2026
May 14, 2026 - Discover population, economy, health, and more with the most comprehensive global statistics at your fingertips.
derry township pennsylvaniapopulation2026
https://worldpopulationreview.com/us-cities/pennsylvania/derry-township-montour-county
Derry township, Pennsylvania Population 2026
May 14, 2026 - Discover population, economy, health, and more with the most comprehensive global statistics at your fingertips.
derry township pennsylvaniapopulation2026