Smicksburg is a borough in Indiana County, Pennsylvania, United States. The population was 57 at the 2020 census, and it is one of the smallest incorporated boroughs in Pennsylvania. It was founded by the Reverend J. George Schmick.

Indiana County is a county in the Commonwealth of Pennsylvania. It is located in the west central part of Pennsylvania. As of the 2020 census, the population was 83,246. Its county seat is Indiana. Indiana County comprises the Indiana, PA Micropolitan Statistical Area, which is also included in the Pittsburgh-New Castle-Weirton, PA-WV-OH Combined Statistical Area. The county is part of the Southwest Pennsylvania region of the state.