There are 10 US Post Offices in Iredell County serving a total of 154,877 residents equating to 15,488 residents per post office. It's estimated that approximately 247,201 packages are handled across the 10 county post offices annually. Iredell County is a county located in the U.S. state of North Carolina. According to current US Census projections in 2014, the population was 166,675. Its county seat is Statesville, and its largest town is Mooresville. The county was formed in 1788, annexed from Rowan County. It is named for James Iredell, a justice of the Supreme Court of the United States nominated by George Washington. Iredell County is included in the Charlotte-Concord-Gastonia, NC-SC Metropolitan Statistical Area."