Belle Vernon is a tiny borough located in the state of Pennsylvania. With a population of 991 people and four associated neighborhoods, Belle Vernon is the 825th largest community in Pennsylvania. Belle Vernon has an unusually large stock of pre-World War II architecture, making it one of the older and more historic boroughs.

Being a small borough, Belle Vernon does not have a public transit system used by locals to get to and from work.

The citizens of Belle Vernon are slightly less educated than the national average of 21.84% for the average city or town: 16.41% of adults in Belle Vernon have a bachelor's degree or advanced degree

The per capita income in Belle Vernon in 2022 was $39,987, which is upper middle income relative to Pennsylvania and the nation. This equates to an annual income of $159,948 for a family of four. However, Belle Vernon contains both very wealthy and poor people as well.

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

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