Somerset ( /sʌmərsɛt/) is a borough in Somerset County, Pennsylvania, United States. The population was 6,277 at the 2010 census. The borough is completely surrounded by Somerset Township. It is the county seat of Somerset County. Somerset is just off Exit 110 of the Pennsylvania Turnpike (I-70 and I-76) and is a popular stopover place for travelers between Southwestern Ontario and American Midwest and the Northeast megalopolis.
Somerset is located at 40°0′25″N 79°4′53″W / 40.00694°N 79.08139°W / 40.00694; -79.08139 (40.006920, -79.081297).
According to the United States Census Bureau, the borough has a total area of 2.7 square miles (7.0 km2), all of it land.