Derry is a very small borough located in the state of Pennsylvania. With a population of 2,583 people and two associated neighborhoods, Derry is the 549th largest community in Pennsylvania. Derry has an unusually large stock of pre-World War II architecture, making it one of the older and more historic boroughs.

Derry is a small borough, and as such doesn't have a public transit system that people use to get to and from their jobs every day.

The percentage of adults in Derry with college degrees is slightly lower than the national average of 21.84% for all communities. 16.08% of adults in Derry have a bachelor's degree or advanced degree.

The per capita income in Derry in 2022 was $29,908, which is lower middle income relative to Pennsylvania and the nation. This equates to an annual income of $119,632 for a family of four. However, Derry contains both very wealthy and poor people as well.

The people who call Derry home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Derry residents report their race to be White, followed by Black or African-American. Important ancestries of people in Derry include German, Irish, Italian, English, and Welsh.

The most common language spoken in Derry is English. Other important languages spoken here include Italian and Polish.