Westmoreland County is located in Pennsylvania, United States.
Westmoreland County is a county located in the U.S. state of Pennsylvania. As of the most recent data available, the county has a population of approximately 369,993 people, with a population density of about 361.67 persons per square mile.
The county spans a total land area of 1,023.00 square miles (2,650.00 square kilometers). The administrative center and county seat is Greensburg, which often serves as a hub for local governance and services. The largest city within the county by population is Greensburg.
Geographically, Westmoreland County experiences varied elevations, with its highest point at Delmont 1,315 ft and its lowest point at Manor 0 ft. The region operates in the UTC-5.