Leechburg is a very small borough located in the state of Pennsylvania. With a population of 2,091 people and two associated neighborhoods, Leechburg is the 622nd largest community in Pennsylvania. Much of the housing stock in Leechburg was built prior to World War II, making it one of the older and more historic boroughs in the country.

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

The percentage of adults in Leechburg with college degrees is slightly lower than the national average of 21.84% for all communities. 15.61% of adults in Leechburg have a bachelor's degree or advanced degree.

The per capita income in Leechburg in 2022 was $28,771, which is lower middle income relative to Pennsylvania and the nation. This equates to an annual income of $115,084 for a family of four. However, Leechburg contains both very wealthy and poor people as well.

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

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