There are 10 US Post Offices in Orleans County serving a total of 41,844 residents equating to 4,184 residents per post office. It's estimated that approximately 66,788 packages are handled across the 10 county post offices annually. Orleans County is a county in the U.S. state of New York. As of the 2010 census, the population was 42,883. The county seat is Albion. The name is in honor of the French Royal House of Orleans. Orleans County is part of the Rochester, NY Metropolitan Statistical Area."