Hunker is a borough in Westmoreland County, Pennsylvania, United States. The population was 329 at the 2000 census. Hunker is located at 40°12′16″N 79°36′58″W / 40.20444°N 79.61611°W / 40.20444; -79.61611 (40.204462, -79.616218). According to the United States Census Bureau, the borough has a total area of 0.4 square miles (1.0 km²), all of it land.