There are 10 US Post Offices in Alamance County serving a total of 157,873 residents equating to 15,787 residents per post office. It's estimated that approximately 251,983 packages are handled across the 10 county post offices annually. Alamance County /\u02c8\u00e6l\u0259m\u00e6ns/ is a county located in the U.S. state of North Carolina. As of the 2010 census, the population was 151,131. Its county seat is Graham. Formed in 1849 from Orange County to the east, Alamance County has been the site of significant historical events, textile manufacturing, and agriculture in North Carolina. Alamance County comprises the Burlington, NC Metropolitan Statistical Area, which is also included in the Greensboro-Winston-Salem-High Point, NC Combined Statistical Area. The 2012 estimated population of the metropolitan area was 153,920."