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. Much of the housing stock in Orrstown was built prior to World War II, making it one of the older and more historic boroughs in the country.

The population of Orrstown has a very low overall level of education: only 6.61% of people over 25 hold a 4-year college degree or higher.

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.