La Plata County
There are 5 US Post Offices in La Plata County serving a total of 43,798 residents equating to 8,760 residents per post office. It's estimated that approximately 69,906 packages are handled across the 5 county post offices annually. La Plata County is one of the 64 counties in the U.S. state of Colorado. As of the 2010 census, the population was 51,334. The county seat is Durango. The county was named for the La Plata River and the La Plata Mountains. \"La plata\" is the Spanish language word for \"silver\". La Plata County comprises the Durango, CO Micropolitan Statistical Area. The county is home to Durango Rock Shelters Archeology Site, the type site for the Basketmaker II period of Anasazi culture."