Millersburg is a very small borough located in the state of Pennsylvania. With a population of 2,536 people and two associated neighborhoods, Millersburg is the 563rd largest community in Pennsylvania. Millersburg has an unusually large stock of pre-World War II architecture, making it one of the older and more historic boroughs.

Millersburg 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 citizens of Millersburg are slightly better educated than the national average of 21.84% for all cities and towns, with 21.25% of adults in Millersburg having a bachelor's degree or advanced degree.

The per capita income in Millersburg in 2022 was $29,369, which is lower middle income relative to Pennsylvania and the nation. This equates to an annual income of $117,476 for a family of four. However, Millersburg contains both very wealthy and poor people as well.

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

The most common language spoken in Millersburg is English. Other important languages spoken here include Polish and German/Yiddish.