Greensburg is a Laurel Highlands city in Westmoreland County, Pennsylvania, United States, and a part of the Pittsburgh Metro Area. The area lies within the ecoregion of the Western Allegheny Plateau. The city is named after Nathanael Greene, a major general of the Continental Army in the American Revolutionary War. Greensburg is the county seat of Westmoreland County, with a population of 14,892 people residing in the city, and a combined total of around 60,000 people in the 15601 zip code, which is split among multiple municipalities, including Hempfield Township, Salem Township, Unity Township and Mount Pleasant Township.
Located southeast of Pittsburgh, Greensburg is a major business, academic, tourism and cultural center in Western Pennsylvania. It is evident as the city's population doubles during work hours. The city ranks seventh in Pennsylvania in terms of daytime growth, behind Pittsburgh, Philadelphia, Harrisburg, King of Prussia, Lancaster, and State College. It also ranks 16th in the United States for daytime growth among towns with a resident population between 15,000 to 24,999. In 2007, Greensburg was ranked as one of the "Best Places to Retire" in Pennsylvania by U.S. News & World Report.