There are 40 US Post Offices in Cambria County serving a total of 91,488 residents equating to 2,287 residents per post office. It's estimated that approximately 146,025 packages are handled across the 40 county post offices annually. Cambria County is a county located in the U.S. state of Pennsylvania. As of the 2010 census, the population was 143,679. Its county seat is Ebensburg. The county was created on March 26, 1804, from parts of Bedford, Huntingdon, and Somerset Counties and later organized in 1807. It was named for the nation of Wales. Cambria County comprises the Johnstown, PA Metropolitan Statistical Area, which is also included in the Johnstown-Somerset, PA Combined Statistical Area."