There are 12 US Post Offices in Freeborn County serving a total of 29,788 residents equating to 2,482 residents per post office. It's estimated that approximately 47,545 packages are handled across the 12 county post offices annually. Freeborn County is a county located in the State of Minnesota. As of the 2010 census, the population was 31,255. Its county seat is Albert Lea. Freeborn County comprises the Albert Lea, MN Micropolitan Statistical Area."