Orrstown is a tiny borough located in the state of Pennsylvania. With a population of 213 people and two associated neighborhoods, Orrstown is the 1083rd largest community in Pennsylvania. Orrstown has an unusually large stock of pre-World War II architecture, making it one of the older and more historic boroughs.

In Orrstown, just 6.61% of people over 25 hold a college degree, which is very low compared to the rest of the nation, whereas the average among all cities is 21.84%.

The per capita income in Orrstown in 2022 was $28,199, which is lower middle income relative to Pennsylvania and the nation. This equates to an annual income of $112,796 for a family of four. However, Orrstown contains both very wealthy and poor people as well.

The people who call Orrstown home describe themselves as belonging to a variety of racial and ethnic groups. The greatest number of Orrstown residents report their race to be White. Important ancestries of people in Orrstown include German, Polish, Swedish, Irish, and English.

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