Smithton is a borough in Westmoreland County, Pennsylvania, United States. The population was 399 at the 2010 census. As of 2018, the population was listed at 378.
Smithton's early industry was in coal mining, coke ovens, and shipping goods produced in the valley of Jacobs Creek.
Stoney's Beer was brewed by the Jones Brewing Company in Smithton until 2002 when the brewing operation was moved to Latrobe, Pennsylvania.
Smithton is serviced by Yough School District
The Youghiogheny River runs along Smithton's western limits.
Smithton is located at 40°9′14″N 79°44′26″W (40.153985, -79.740531).
According to the United States Census Bureau, the borough has a total area of 0.1 square miles (0.26 km2), all of it land.
Smithton is completely surrounded by South Huntingdon Township
As of the census of 2000, there were 444 people, 188 households, and 124 families residing in the borough. The population density was 3,858.5 people per square mile (1,428.6/km²). There were 208 housing units at an average density of 1,807.6 per square mile (669.2/km²). The racial makeup of the borough was 99.10% White, 0.23% Native American, and 0.68% from two or more races.
There were 188 households out of which 29.3% had children under the age of 18 living with them, 52.1% were married couples living together, 11.7% had a female householder with no husband present, and 34.0% were non-families.