There are 6 US Post Offices in Lincoln County serving a total of 6,061 residents equating to 1,010 residents per post office. It's estimated that approximately 9,674 packages are handled across the 6 county post offices annually. Lincoln County is one of the 64 counties in the U.S. state of Colorado. As of the 2010 census, the population was 5,467. The county seat is Hugo. The county obtains its name in memory of President Abraham Lincoln."