Derry Flag

Derry

County Seat:
No
Area (mi²):
0.772
State:
Pennsylvania

Derry is a borough located in Westmoreland County, Pennsylvania. Derry has a 2026 population of 2,583. Derry is currently declining at a rate of -0.31% annually and its population has decreased by -2.16% since the most recent census, which recorded a population of 2,640 in 2020.

2.6K
Total Population
3,346
Density (mi²)
-8 -0.31%
Growth

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)