There are 10 US Post Offices in Faribault County serving a total of 14,361 residents equating to 1,436 residents per post office. It's estimated that approximately 22,922 packages are handled across the 10 county post offices annually. Faribault County /\u02c8f\u025b\u0259r\u1d7bbo\u028a/ is a county located in the U.S. state of Minnesota. As of the 2010 census, the population was 14,553. Its county seat is Blue Earth. The county was founded in 1855. It is named for Jean-Baptiste Faribault, a settler and French fur trader among the Sioux Indians."